CN106113511B - A kind of the powder falling distributor and its powder falling distribution method of 3D printer - Google Patents
A kind of the powder falling distributor and its powder falling distribution method of 3D printer Download PDFInfo
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- CN106113511B CN106113511B CN201610725569.3A CN201610725569A CN106113511B CN 106113511 B CN106113511 B CN 106113511B CN 201610725569 A CN201610725569 A CN 201610725569A CN 106113511 B CN106113511 B CN 106113511B
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- discharge port
- feed inlet
- powder
- diffluence pass
- distributary base
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- 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
Abstract
The present invention provides a kind of powder falling distributor of 3D printer, ontology and distributary base including being provided with feed inlet；The distributary base setting is opposite with feed inlet at the top of body interior, distributary base, and discharge port one is provided between distributary base and ontology；The two sidewalls of the distributary base are provided with diffluence pass, and distributary base bottom is provided with the discharge port two being connected to diffluence pass, and discharge port one and discharge port two are in the same horizontal line；Feed inlet, diffluence pass, discharge port one and discharge port two are in tree forked type structure distribution.The present invention also provides a kind of powder falling distribution method, this method is by by feed inlet, n-layer dividing cell, 2n+1A discharge port is in tree forked type structure distribution, and by 2n+1A discharge port setting in the same horizontal line, realizes that powder is evenly distributed from feed inlet to 2n+1A discharge port.Powder falling distributor of the invention and distribution method, which can be realized, evenly distributes powder on powdering platform, to improve the uniformity and precision of powdering.
Description
Technical field
The present invention relates to 3D printing technique fields, a kind of powder falling distributor more specifically to 3D printer and its
Powder falling distribution method.
Background technique
Currently, 3D printing technique is just rapidly growing, laser powder Quick-forming is a kind of 3D printing side of comparative maturity
Method.Wherein, the powdering process of 3D printer is the critical process in laser powder rapid prototyping technology, the thickness of powder bed and
Even property has significant impact to the forming effect of forming technology and entire part.
In forming process, bisque thickness phase one that practical powdering thickness must be obtained with part model computer subdivision
It causes, powdering powder amount has decisive influence to bisque thickness.In currently used scraper plate/chip powdering method, using cylindrical body
Powder falling device falls into powder on powdering platform, then is uniformly spread the powder on powdering platform using the scraping blade of powder supply mechanism
Powder.But it is piled up in powder falling mouth due to that can concentrate by the powder under cylindrical body powder falling device, it is easy to appear the paving far from powder falling mouth
The phenomenon that the powder amount of powder region powdering is too small or powdering is not complete causes powdering platform powdering uneven, will cause part forming ruler
Very little error will cause part forming failure when serious.
It is needed by powder the case where being all paved on powdering platform especially for current powder supply mechanism, powdering area
Greatly, it needs powdering amount more, the area of powdering can be made to cause more greatly according to the mode of existing cylindrical body powder falling device small powder powdering
Its precision of powder laying is lower, and the forming accuracy of finished product is also lower.
Summary of the invention
It is an object of the invention to overcome shortcoming and deficiency in the prior art, it is simply and practical to provide a kind of structure
3D printer powder falling distributor, which can effectively evenly distribute powder on powdering platform, to improve
The uniformity and precision of powdering.Meanwhile the present invention also provides the powder fallings that powder can be evenly distributed the 3D printer of blanking by one kind
Distribution method, to improve the precision of powdering and the precision of finished product forming.
In order to achieve the above object, the technical scheme is that: a kind of powder falling of 3D printer point
Orchestration, it is characterised in that: ontology and distributary base including being provided with feed inlet；The distributary base setting is shunted in body interior
Seat top is opposite with feed inlet, and discharge port one is provided between distributary base and ontology；The two sidewalls of the distributary base are provided with
Diffluence pass, distributary base bottom are provided with the discharge port two being connected to diffluence pass, and discharge port one and discharge port two are in same horizontal line
On；The feed inlet, diffluence pass, discharge port one and discharge port two are in tree forked type structure distribution.
In the above scheme, feed inlet of the invention, diffluence pass, discharge port one and discharge port two are in tree forked type structure point
Cloth, so that the powder entered from feed inlet passes through diffluence pass uniform divided flows to discharge port one and discharge port two, i.e., by a powder
It is equally divided into the small powder of several deals, so that the powder piling height reduction that every deal is small, to realize effectively that powder is uniform
It is allocated on powdering platform, convenient for the powdering process of powder supply mechanism.In the same horizontal line due to discharge port one and discharge port two,
Therefore it is evenly distributed to discharge port one and the powder of discharge port two is located in the same horizontal line of powdering platform, in strip region
In be uniformly distributed, be piled up in some point so only concentrating there is no powder in the prior art, may be not present far from the powder heap
The phenomenon that the region powdering powder amount of plot point is too small or powdering is not complete.
In the powdering method of 3D printer, powder falling distributor through the invention uniformly divides powder equally, so that using paving
Each heap powder in strip region is carried out uniform powdering by the scraping blade of powder mechanism on powdering platform, realizes that powder is flat in powdering
Platform is all uniformly paved with, to improve the precision of powdering and the precision of finished product forming.
Powder falling channel is formed between on the inside of the distributary base two sidewalls and ontology, powder falling one end of the channel is connected to feed inlet,
The other end is connected to discharge port one.
The diffluence pass is opened up along the thickness direction of distributary base side wall.
The depth that the diffluence pass opens up is the half of distributary base sidewall width.The powder that the design can will enter from feed inlet
Mean allocation is expected to diffluence pass and discharge port one, so that the powder amount of discharge port one and the discharge port two being connected to diffluence pass
Unanimously.
Split channel is formed between the diffluence pass and discharge port two；The split channel includes that interconnected inclination is logical
Road and Vertical Channel, ramp way are connected to diffluence pass, and Vertical Channel is connected to discharge port two.
The inner wall and vertical direction of the ramp way form inclination angle beta, the range of inclination angle beta are as follows: 0 °≤β≤
60°.Inclination angle beta of the present invention sets a certain range, it is ensured that into the powder at diffluence pass be not in accumulate it is remaining
Phenomenon.If the inclination angle beta is excessive, the inner wall of ramp way is more gentle, can be easy to produce powder accumulation and remain in inner wall
Phenomenon, powder cannot drop into discharge port two from diffluence pass completely, to substantially reduce the effect of powder mean allocation.
The top of the distributary base is that angular top is arranged, opposite in the middle part of the wedge angle position of top wedge angle and feed inlet.
Wedge angle position at the top of distributary base of the present invention is opposite with feed inlet, and the powder entered from feed inlet may make not lodge in distributary base
Top, to further have the function that powder mean allocation.
A kind of powder falling distribution method of 3D printer, it is characterised in that: be disposed with from top to bottom a feed inlet, with
The n-layer dividing cell and 2 of feed inlet connectionn+1A discharge port；Every layer of dividing cell is provided with diffluence pass, from top to bottom
The quantity of the diffluence pass of dividing cell is in 2mAscending series arrangement；The discharge port is connected to diffluence pass or feed inlet；
By by feed inlet, n-layer dividing cell, 2n+1A discharge port is in tree forked type structure distribution, and by 2n+1A discharge port
Setting in the same horizontal line, realizes that powder is evenly distributed from feed inlet to 2n+1A discharge port；Wherein, n >=1 and be natural number,
1≤m≤n and be natural number.
In the above scheme, powder falling distribution method through the invention, the powder of a feed inlet can be evenly distributed for
2n+1Heap powder, and 2n+1Heap powder in the same horizontal line, convenient for the uniformity of subsequent powdering and comprehensive.If n is bigger
The straight line with powder can be then formed, suitable for 3D printing process of the powdering area greatly and more than dosage.
Two diffluence pass and four discharge ports for being disposed with a feed inlet from top to bottom, being connected to feed inlet；Institute
Stating discharge port includes two discharge ports one being connected to feed inlet, and two discharge ports being connected to respectively with opposite diffluence pass
Two；
By being in tree forked type structure distribution by feed inlet, diffluence pass, discharge port one and discharge port two, and two material mouths will be gone out
One and two setting of discharge port two in the same horizontal line, realizes that powder is evenly distributed from feed inlet to discharge port one and discharge port
Two.
Feed inlet, diffluence pass, discharge port one and discharge port two of the invention is in tree forked type structure distribution, so that from feed inlet
The powder of entrance by diffluence pass uniform divided flows to discharge port one and discharge port two, thus realize effectively by powder evenly distribute in
On powdering platform.In the same horizontal line due to discharge port one and the setting of discharge port two, it is evenly distributed to one He of discharge port
The powder of discharge port two is located in the same horizontal line of powdering platform, is distributed in strip region, so that using powdering
Each heap powder in strip region is carried out uniform powdering by the scraping blade of mechanism on powdering platform, realizes powder in powdering platform
It is all uniformly paved with, to improve the precision of powdering and the precision of finished product forming.
The ontology of the distributary base and top setting feed inlet that evenly distribute for powder is set；The top of the distributary base is
Angular top is set, and opposite in the middle part of the wedge angle position of top wedge angle and feed inlet；Two diffluence pass are shunting respectively
The two sidewalls of seat open up, and the bottom of distributary base is arranged in discharge port two, and discharge port one is arranged between distributary base and ontology；
Ramp way, the inner wall and vertical direction shape of ramp way are set by the channel that diffluence pass is connected to discharge port two
At inclination angle beta, the range of inclination angle beta are as follows: 0 °≤β≤60 °.
Inclination angle beta of the present invention sets a certain range, it is ensured that into the powder at diffluence pass be not in accumulate it is residual
The phenomenon that staying.Equally, it can effectively avoid the powder meeting entered from feed inlet relatively in the middle part of the wedge angle position of top wedge angle and feed inlet
The phenomenon that lodging at the top of distributary base.
Compared with prior art, the invention has the advantages that with the utility model has the advantages that
1, the powder falling dispensing arrangement of 3D printer of the invention is simple and practical, the powder falling distributor can effectively by
Powder is evenly distributed on powdering platform, to improve the uniformity and precision of powdering.
2, powder can be evenly distributed blanking by the powder falling distribution method of 3D printer of the present invention, to improve the essence of powdering
The precision of degree and finished product forming.
Detailed description of the invention
Fig. 1 is the schematic diagram of the powder falling distributor of 3D printer of the present invention；
Fig. 2 is the schematic internal view of the powder falling distributor of 3D printer of the present invention；
Fig. 3 is the inner section schematic diagram of the powder falling distributor of 3D printer of the present invention；
Wherein, 1 it is feed inlet, 2 be ontology, 3 be distributary base, 4 is that discharge port one, 5 is diffluence pass, 6 is discharge port two.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawing.
Embodiment one
A feed inlet, two diffluence pass, two discharge port one and two dischargings are arranged with powder falling distributor in the present embodiment
To being illustrated below for mouthfuls two.
As shown in Figure 1 to Figure 3, the powder falling distributor of 3D printer of the present invention includes the triangle shape for being provided with feed inlet 1
The ontology 2 of shape and triangular shaped distributary base 3, wherein distributary base 3 is arranged inside ontology 2, and the top of distributary base 3 is to set
Angular top is set, the wedge angle position and 1 middle part of feed inlet of top wedge angle are opposite.Discharging is provided between distributary base 3 and ontology 2
Mouth 1, the two sidewalls of distributary base 3 are provided with diffluence pass 5, and 3 bottom of distributary base is provided with the discharge port two being connected to diffluence pass 5
6, discharge port 1 and discharge port 26 are in the same horizontal line.And feed inlet 1, diffluence pass 5, discharge port 1 and discharge port 26 are in
Set forked type structure distribution.
Powder falling channel, powder falling one end of the channel and feed inlet are formed between 2 inside of 3 two sidewalls of distributary base and ontology of the invention
1 connection, the other end are connected to discharge port 1.And diffluence pass 5 is opened up along the thickness direction of 3 side wall of distributary base, in order to improve powder
The uniformity of distribution, the depth that diffluence pass 5 opens up are the half of 3 sidewall width of distributary base.
Split channel is formed between diffluence pass 5 and discharge port 26 of the invention, split channel includes interconnected inclination
Channel and Vertical Channel, ramp way are connected to diffluence pass 5, and Vertical Channel is connected to discharge port 26.The inner wall of ramp way with
Vertical direction forms inclination angle beta, the range of inclination angle beta are as follows: 0 °≤β≤60 °.Inclination angle beta of the present invention is set centainly
Range, it is ensured that into the powder at diffluence pass 5 be not in accumulate residual the phenomenon that.Equally, the point of 3 top wedge angle of distributary base
Angle position is opposite with 1 middle part of feed inlet to can effectively avoid the phenomenon that lodging in 3 top of distributary base from the powder that feed inlet 1 enters.
The powder falling distribution method of 3D printer of the present invention be such that be disposed with from top to bottom a feed inlet 1, with
Two diffluence pass 5 and four discharge ports that feed inlet 1 is connected to, discharge port includes two discharge ports 1 being connected to feed inlet 1,
And two discharge ports 26 being connected to respectively with opposite diffluence pass 5.This method is by by feed inlet 1, diffluence pass 5, discharge port one
4 and discharge port 26 in tree forked type structure distribution, and two material mouths 1 will be gone out and two discharge ports 26 are arranged in same horizontal line
On, realize that powder is evenly distributed from feed inlet 1 to discharge port 1 and discharge port 26.
Method of the invention also sets up the ontology 2 of the distributary base 3 and top setting feed inlet 1 that evenly distribute for powder,
The top of distributary base 3 is angular top to be arranged, and the wedge angle position of top wedge angle and 1 middle part of feed inlet are opposite.And two points
Head piece 5 is opened up in the two sidewalls of distributary base 3 respectively, and the bottom of distributary base 3 is arranged in discharge port 26, and the setting of discharge port 1 is dividing
It flows between seat 3 and ontology 2.
The channel that diffluence pass 5 is connected to discharge port 26 is set ramp way by method of the invention, ramp way it is interior
Wall and vertical direction form inclination angle beta, the range of inclination angle beta are as follows: 0 °≤β≤60 °.
Embodiment two
The present embodiment the difference is that only with embodiment one: the powder falling distribution method of the embodiment is not limited to one
The powder of feed inlet is equally assigned into four heap powders.The distribution method of the embodiment is such that be disposed with from top to bottom
One feed inlet, two layers of dividing cell being connected to feed inlet and eight discharge ports；Every layer of dividing cell is provided with diffluence pass,
The quantity of the diffluence pass of dividing cell is in 2 from top to bottommAscending series arrangement, i.e. first layer dividing cell shunt there are two setting
Mouthful, second layer dividing cell is set there are four diffluence pass；Discharge port is connected to diffluence pass or feed inlet；
By the way that feed inlet, two layers of dividing cell, eight discharge ports are set eight discharge ports in tree forked type structure distribution
It sets in the same horizontal line, realizes that powder is evenly distributed from feed inlet to eight discharge ports.
Therefore, the powder of a feed inlet can be equally assigned into eight heap powders, and eight heap powder by the method for the embodiment
Material in the same horizontal line, convenient for the uniformity of subsequent powdering and comprehensive.
Embodiment three
The present embodiment the difference is that only with embodiment one: the powder falling distribution method of the embodiment be not limited to by one into
The powder of material mouth is equally assigned into four heap powders.The distribution method of the embodiment is such that be disposed with one from top to bottom
A feed inlet, the n-layer dividing cell and 2 being connected to feed inletn+1A discharge port；Every layer of dividing cell is provided with diffluence pass, from
Quantity up to the diffluence pass of lower dividing cell is in 2mAscending series arrangement, discharge port are connected to diffluence pass or feed inlet；
By by feed inlet, n-layer dividing cell, 2n+1A discharge port is in tree forked type structure distribution, and by 2n+1A discharge port
Setting in the same horizontal line, realizes that powder is evenly distributed from feed inlet to 2n+1A discharge port；Wherein, n >=1 and be natural number,
1≤m≤n and be natural number.
Therefore, the powder of a feed inlet can be equally assigned into 2 by the method for the embodimentn+1Heap powder, and 2n+1Heap
Powder in the same horizontal line, convenient for the uniformity of subsequent powdering and comprehensive.One can be formed if n is bigger has powder
Straight line, suitable for powdering area is big and dosage more than 3D printing process.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (3)
1. a kind of powder falling distribution method of 3D printer, it is characterised in that: be disposed with from top to bottom a feed inlet, with into
The n-layer dividing cell and 2 of material mouth connectionn+1A discharge port；Every layer of dividing cell is provided with diffluence pass, divides from top to bottom
The quantity for flowing the diffluence pass of unit is in 2mAscending series arrangement；The discharge port is connected to diffluence pass or feed inlet；
By by feed inlet, n-layer dividing cell, 2n+1A discharge port is in tree forked type structure distribution, and by 2n+1A discharge port setting
In the same horizontal line, realize that powder is evenly distributed from feed inlet to 2n+1A discharge port；Wherein, n >=1 and be natural number, 1≤m
≤ n and be natural number.
2. the powder falling distribution method of 3D printer according to claim 1, it is characterised in that: be disposed with from top to bottom
One feed inlet, two diffluence pass being connected to feed inlet and four discharge ports；The discharge port includes being connected to feed inlet
Two discharge ports one, and two discharge ports two being connected to respectively with opposite diffluence pass；
By being in tree forked type structure distribution by feed inlet, diffluence pass, discharge port one and discharge port two, and two one Hes of material mouth will be gone out
Two settings of discharge port two in the same horizontal line, realize that powder is evenly distributed from feed inlet to discharge port one and discharge port two.
3. the powder falling distribution method of 3D printer according to claim 2, it is characterised in that: setting uniformly divides for powder
The ontology of the distributary base matched and top setting feed inlet；The top of the distributary base is angular top to be arranged, and top is sharp
It is opposite in the middle part of the wedge angle position at angle and feed inlet；Two diffluence pass are opened up in the two sidewalls of distributary base respectively, and discharge port two is set
It sets in the bottom of distributary base, discharge port one is arranged between distributary base and ontology；
Ramp way is set by the channel that diffluence pass is connected to discharge port two, inner wall and the vertical direction formation of ramp way are inclined
Rake angle β, the range of inclination angle beta are as follows: 0 °≤β≤60 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610725569.3A CN106113511B (en) | 2016-08-25 | 2016-08-25 | A kind of the powder falling distributor and its powder falling distribution method of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725569.3A CN106113511B (en) | 2016-08-25 | 2016-08-25 | A kind of the powder falling distributor and its powder falling distribution method of 3D printer |
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| CN106113511A CN106113511A (en) | 2016-11-16 |
| CN106113511B true CN106113511B (en) | 2018-12-04 |
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| CN108031653A (en) * | 2017-12-19 | 2018-05-15 | 吉林市松花湖实业有限公司 | The novel distributor and its application method of a kind of cycle winnowing device |
| CN110614366A (en) * | 2019-10-09 | 2019-12-27 | 安徽徽博先临三维云打印技术有限公司 | Ultrathin efficient powder-spreading three-dimensional printer and powder-spreading method |
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| SE524439C2 (en) * | 2002-12-19 | 2004-08-10 | Arcam Ab | Apparatus and method for making a three-dimensional product |
| CN100366374C (en) * | 2006-04-12 | 2008-02-06 | 华中科技大学 | Powder materials rapid forming system |
| US8545209B2 (en) * | 2009-03-31 | 2013-10-01 | Microjet Technology Co., Ltd. | Three-dimensional object forming apparatus and method for forming three-dimensional object |
| CN204184774U (en) * | 2014-08-29 | 2015-03-04 | 无锡双雄通用机械有限公司 | A kind of feeder hopper of powder transfer device |
| CN204592670U (en) * | 2015-04-17 | 2015-08-26 | 建德市易通金属粉材有限公司 | A kind of pressed powder part flow arrangement |
| CN206663798U (en) * | 2016-08-25 | 2017-11-24 | 佛山市南海中南机械有限公司 | A kind of powder falling distributor of 3D printer |
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