CN109910297A - A kind of the 3D printing equipment and its Method of printing of more Material claddings - Google Patents
A kind of the 3D printing equipment and its Method of printing of more Material claddings Download PDFInfo
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- 238000007639 printing Methods 0.000 title claims abstract description 90
- 238000010146 3D printing Methods 0.000 title claims abstract description 43
- 238000005253 cladding Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 104
- 238000003892 spreading Methods 0.000 claims abstract description 48
- 230000007480 spreading Effects 0.000 claims abstract description 48
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims description 35
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- 239000002131 composite material Substances 0.000 claims description 11
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Abstract
Present invention relates particularly to a kind of 3D printing equipment of more Material claddings and its Method of printing, the 3D printing equipment includes multi-chamber power spreading device, workbench, combined type printing equipment, more materials mixing devices etc.；The multi-chamber power spreading device is elongated hollow body, and inner cavity can be used for storing dusty material；The multi-chamber power spreading device includes two or more powder feeding tanks, and the powder feeding tank is arranged along the adjacent connection in direction perpendicular to powder supply slot length；Each powder feeding tank is equipped with individual feed inlet and feed opening；Selective blanking device is equipped at the feed opening of each powder feeding tank, the selectivity blanking device is formed by being arranged in multiple expansion body units at feed opening along the powder feeding tank length direction, and closely connection is covered with the feed opening of the powder feeding tank between the multiple expansion body unit.
Description
Technical field
The present invention relates in increasing material manufacturing equipment technical field, and in particular to a kind of 3D printing equipment of more Material claddings and
Its Method of printing.
Background technique
Traditional 3D printing technique is usually to be laid with one layer of dusty material, then in dusty material surface jet binder,
It is formed by curing two dimensional image, is solidified by multiple stacking, three-dimensional three-dimensional objects are ultimately formed.Its 3D printing technique is all
It is related to the parameters such as homogenous material, single thickness, single binder, is unable to satisfy the demand of product diversification, customization.In reality
In production process, since the characteristic of product different parts is different, need some privileged sites using different dusty materials with
And binder combination forming, to improve the intensity and quality of product.Meanwhile the product extremely complex for some surface profiles,
Single thickness printing will cause the reduction of precision and intensity at some curved surfaces.Therefore, become material, change layer thickness, become answering for granularity
Printing technology is closed to have broad application prospects in 3D printing.
Influence of the thickness to formed precision and efficiency.The realistic model that prints is layered because there are excess stock, it with
There is a certain error between theoretical model, is referred to as alias in rapid shaping technique.Thickness directly affects product
Alias, with the increase of single layer thickness, the alias of curved-surface piece is more obvious, so that part accuracy occurs very greatly partially
Difference.Thickness almost determines the precision of 3D printing, and the realistic model surface accuracy that printer model thickness prints more greatly is lower,
The smaller surface accuracy of thickness is higher.Meanwhile the excessive binder that will lead to of thickness cannot pass through the adhesive layer, connect between layers
It is not firm to connect, and layering, shaping strength is caused to reduce；And too small thickness can reduce equipment printing effect.
Limitation of the homogenous material to 3D printing.For casting 3D printing, the 3D printing technique of Application in Foundry mainly has
3DP (three-dimensional jet binder forming technique) and two kinds of SLS (laser selective sintering technology): the former is mainly used in furans tree
The printing of rouge sand mold, phenolic resin sand mold, waterglass sand mold, front and back production process can meet production substantially without change,
And have the characteristics that high-efficient, at low cost；The latter is mainly used in the printing of precoated sand, prints higher cost, and efficiency is lower,
But its precision for printing sand mold and surface quality are better than 3DP printing type.Sand used in this two kinds of Method of printings is all only
It can be that a kind of sand or several sand homogeneous mixtures due to the cooling characteristics of casting, need but in the actual production process
Some privileged sites of sand mold after special sand coremaking, by being applied in combination with common sand mold, can be improved at thermal center
The quality of casting, or even in the production of large-scale steel-casting, all used close to cast(ing) surface chrome ore as facing sand, remaining
Position uses silica sand as floor sand to guarantee casting quality.Therefore two or more composite sand moulds has extensively in Foundry Production
Application.
Limitation of the single binder to 3D printing.Different materials needs to be solidified using the binder to match, mesh
It is preceding for traditional 3D printing equipment, all printed just for homogenous material, single binder, be unable to satisfy multiple material
It prints simultaneously, can not achieve diversification, the demand customized.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the 3D printing equipment and its powdering method of a kind of more Material claddings,
The product of different parameters requirement can be printed in same 3D printing equipment, met change material, change layer thickness, the technique of change granularity and wanted
It asks, realizes diversification and the printing of complex structure product.
The technical solution adopted by the present invention to solve the technical problems are as follows: a kind of 3D printing equipment of more Material claddings, packet
Include multi-chamber power spreading device；The multi-chamber power spreading device is elongated hollow body, and inner cavity can be used for storing dusty material；Institute
Stating multi-chamber power spreading device includes two or more powder feeding tanks, and the powder feeding tank is along the direction adjacent straight perpendicular to powder supply slot length
Line arrangement or adjacent array arrangement；Each powder feeding tank is equipped with individual feed inlet and feed opening；Each powder feeding tank
Selective blanking device is equipped at feed opening, the selectivity blanking device is by being arranged in blanking along the powder feeding tank length direction
Multiple expansion body units composition at mouthful, it is the multiple to expand the blanking for closely connecting between body unit and being covered with the powder feeding tank
Mouthful.
Further, the feed opening of each powder feeding tank is connected in the lower part of the power spreading device, forms the powdering
The discharge port (111) of device.
Further, each powder supply slot length can be set to the multi-chamber power spreading device equal length, then
Each powder feeding tank forms the power spreading device along the adjacent straight line arrangement in direction perpendicular to powder supply slot length.
Further, spiral conveying mechanism is housed in the powder feeding tank, dusty material is transported to each of powder supply slot chamber
A position.
Further, each expansion body unit has independent expansion driven pipeline and independent control module.
Further, the length of the expansion body unit is 10-100mm, and material is corrosion resistant malleable material.
Further, the side of the multi-chamber power spreading device is equipped with vibration device, for make the power spreading device and
Dusty material vibration.
Further, the 3D printing equipment further includes combined type printing equipment, and the combined type printing equipment is by being applicable in
It is formed in a plurality of types of printing head set of different binders.
Further, the 3D printing equipment further includes multiple material mixed organization, the multiple material mixed organization packet
Containing multiple independent solid-liquid mixers.
It further, is by institute using a kind of method that the 3D printing equipment of more Material claddings carries out 3D printing of the present invention
The part expansion body unit that multi-chamber power spreading device opens and closes the selective blanking device according to system command is stated,
To control the part feed opening blanking of the corresponding powder feeding tank, the powder bed for completing more Material claddings is laid with；Then by compound
Printing equipment is suitable for the binder for being laid with powder layer material according to the corresponding injection of system command, realizes described be laid with
The local solidification of powder layer material；Powder bed laying and binder injection are so repeated, until forming completely more Material claddings
Product.
Further, described to utilize a kind of method that the 3D printing equipment of more Material claddings carries out 3D printing of the present invention, tool
Body the following steps are included:
1) using three-dimensional graphics software, the composite three-dimensional model comprising various powders material is drawn, threedimensional model is sliced
Afterwards, every layer of two dimensional image is imported into printer control system by page order；
2) different types of dusty material is pre-processed, is added to respectively from the multi-chamber power spreading device feed inlet
Individual powder feeding tank, selective cutting agency all close by expansion；
3) two dimensional image for reading current printable layer opens one section or whole of corresponding powder feeding tank according to the layer data of reading
Feed opening starts powdering；
4) when the multi-chamber power spreading device is run to when forward two-dimensional viewing needs to be laid with the position of another dusty material
When, selective blanking device is positioned according to system and signal, controls the powder supply that the expander closure at feed opening does not need blanking
Slot opens one section or whole feed openings of the powder feeding tank of the blanking of needs, realizes the switching of dusty material type；
5) after completing one layer of powdering, composite printing device setting in motion, in powder bed selectively jet binder；
6) step 3, step 4) and step 5) are repeated, until printing terminates；
7) after the completion of binder hardening, it is removed without the dusty material of jet binder, obtains more Material claddings
Product.
As shown from the above technical solution, the 3D printing equipment and its powdering method of a kind of more Material claddings of the present invention is beneficial
Effect includes at least: the product of different parameters requirement can be printed in same 3D printing equipment, it can be in same 3D printing equipment
The product that different parameters require is printed, meets the technique requirement for becoming material, change layer thickness, becoming granularity, realizes diversification and complicated knot
The printing of structure product.
Detailed description of the invention
Fig. 1 is the cross-sectional view of multi-cavity power spreading device provided in an embodiment of the present invention.
Fig. 2 is the cross section partial enlarged view of multi-cavity power spreading device provided in an embodiment of the present invention.
Fig. 3 is the partial bottom view of multi-cavity power spreading device provided in an embodiment of the present invention.
Fig. 4 is the schematic three dimensional views of multi-cavity power spreading device provided in an embodiment of the present invention.
Fig. 5 is the chart at the bottom of of multi-cavity power spreading device provided in an embodiment of the present invention.
Fig. 6 be another embodiment of the present invention provides composite printing device one schematic diagram of integration mode.
Fig. 7 be another embodiment of the present invention provides composite printing device two schematic diagram of integration mode.
Wherein, 100- feed inlet；101- negative pressure entrance；102- spiral conveying mechanism；103- powder feeding tank；104- strainer；
105- expander；106- feed opening；107- powder-wiping plate；108- vibration device；109- powder supply groove sidewall；110- connecting plate；111-
Discharge port；200- feed inlet；201- negative pressure entrance；202- spiral conveying mechanism；203- powder feeding tank；204- strainer；205- expansion
Body；206- feed opening；207- powder-wiping plate；208- vibration device；300- printing head 1；301- printing head 2；302- printing dress
Bottom set plate；400- printing equipment 1；401- printing equipment 2；402- printing equipment 3；403- work box；404- cleaning protection station 1；
405- cleaning protection station 2；406- cleaning protection station 3；The direction 407-X moves mould group.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.It note that the embodiments described below is exemplary, for explaining only the invention, and
It is not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to the literature in the art institute
The technology or conditions of description are carried out according to product description.
According to an aspect of the present invention, the present invention provides a kind of 3D printing equipment of more Material claddings, the 3D is beaten
Printing apparatus includes workbench, multi-chamber power spreading device, combined type printing equipment, more materials mixing devices, liquid feeding system etc..
The multi-chamber power spreading device structure, realizes in print procedure, selective to spread at each position of printing level
If variety classes or varigrained dusty material print answering with various powders material after jet binder bonds
Product is closed, to realize the printing requirement in product privileged sites using special material, improves the quality of shaped article.
The lifting mechanism of the workbench uses high-precision servo driver, can accurately control the lifting of workbench
Highly, cooperate the adjusting of multi-chamber power spreading device feed opening opening-closing size, realize the accurate control of printing thickness, it can be according to every
Its thickness of the control of the feature selecting of one layer pattern, to realize that change layer thickness prints.
The combined type printing equipment is made of the printing head for being filled with different binders, can according to different thickness,
Different dusty materials, sprays the binder of corresponding type and quantity, to meet different moulding process requirements.It is described compound
Formula printing equipment further comprises the liquid feeding system that can provide a variety of binders, and liquid feeding system is according to each printing equipment binder
Dosage is automatically replenished liquid measure.
More materials mixing devices, contain multiple dusty material storehouses and mixing tank, and the mixing of every kind of material is all phase
It is mutually independent, the consistency and accuracy of material mixing can be effectively ensured.
As shown in Figure 1, the multi-chamber power spreading device includes two and more than two connected powder feeding tanks, each powder feeding tank
Different dusty materials can be added, the powder feeding tank is along the adjacent straight line arrangement in direction perpendicular to powder supply slot length or adjacent
Array arrangement.For convenience of it will be appreciated by those skilled in the art that with the power spreading device structure comprising two powder feeding tanks (103 and 203) into
Row description, but it is not limited to two powder feeding tanks.The powder feeding tank is arranged along the adjacent connection in direction perpendicular to powder supply slot length, is used
In storing different types of dusty material, each powder feeding tank has an individual feed inlet 100 and 200, for respectively to powder supply
Dusty material is added in slot 103 and 203, spiral conveying mechanism 102 and 202 is housed in the powder feeding tank, is used for dusty material
It is sent to powder feeding tank everywhere；State each powder supply slot length and the multi-chamber power spreading device equal length；The multi-chamber powdering
The side of device or the side of the powder feeding tank, such as powder feeding tank feed opening two sides are equipped with vibration device 108 and 208, vibration
Device is used for Vibrated baiting, is equipped with strainer 104 and 204 inside each powder feeding tank through entire power spreading device length direction,
It acts as avoiding excessive blanking, while impurity is filtered out, respectively has a feed opening 106 and 206, and blanking below each powder feeding tank
Mouthful collect in power spreading device exit for a power spreading device discharge port 111, there is selective blanking dress at powder feeding tank feed opening
Set 105,106,205,206；The selectivity blanking device is by exporting compact arranged controllable expansion body unit 105 along powder feeding tank
And 205 composition, as shown in Figures 2 and 3, control powder feeding tank gate out switch/closure object be expander 105 and 205, expander
105 and 205 sides are mounted on connecting plate 110.Each expansion body unit has independent expansion driven pipeline and independent
Control module；For example, wherein expander 105 expands after entrance 101 is passed through positive pressure, the feed opening 106 of corresponding powder feeding tank is blocked,
Expander 205 is after entrance 201 is passed through negative pressure, elastomer contracts, powder feeding tank feed opening 206 is opened, according to layer each in printing
The difference of the X-Y scheme detected, can control the swelling state of expander 105 and 205, to control 106 He of feed opening
The different dusty material of 206 outflows.
The expander has individual air flue to link with outside control electromagnetic gas valve, and expander 105 and 205 is by multistage
The expansion body unit that unit length is 10mm-100mm forms；Expander material is anti-corrosive rubber or other corrosion-resistant elastic materials
Material.
According to a particular embodiment of the invention, using the method for 3D printing equipment of the present invention progress 3D printing, it is
The part expander of the selective blanking device is opened and closed according to system command by the multi-chamber power spreading device
Unit, to control the part feed opening blanking of the corresponding powder feeding tank, the powder bed for completing more Material claddings is laid with；Then by
Composite printing device is suitable for the binder for being laid with powder layer material according to the corresponding injection of system command, and realization is described
It is laid with the local solidification of powder layer material；Powder bed laying and binder injection are so repeated, until forming completely more materials
Compound product.
The method that a kind of 3D printing equipment of more Material claddings of the present invention utilized above carries out 3D printing, specifically includes as follows
Step:
The first step draws the composite three-dimensional model comprising various powders material, by threedimensional model using three-dimensional graphics software
After slice, every layer of two dimensional image is imported into printer control system by page order；
Second step pre-processes different types of dusty material, respectively from the multi-chamber power spreading device feed inlet
It is added to individual powder feeding tank, selective cutting agency all close by expansion；
Third step reads the two dimensional image of current printable layer, opens one section of corresponding powder feeding tank according to the layer data of reading
Or whole feed openings, start powdering；
4th step, when the multi-chamber power spreading device is run to when forward two-dimensional viewing needs to be laid with another dusty material
When position, selective blanking device is positioned according to system and signal, controls the expander closure at feed opening and does not need blanking
Powder feeding tank opens one section or whole feed openings of the powder feeding tank of the blanking of needs, realizes the switching of dusty material type；
5th step, after completing one layer of powdering, the composite printing device setting in motion is selectively sprayed in powder bed
Binder；
6th step repeats third step to the 5th step and operates, until printing terminates；
7th, after the completion of binder hardening, it is removed without the dusty material of jet binder, more Material claddings is obtained and produces
Product.
Preferably wherein, dusty material pretreatment refers to a kind of component for being mixed into curing agent or dual-component binder in the powder.
The power spreading device structure is as shown in Fig. 1, and the feed opening of power spreading device powder feeding tank 103 is opened, powder feeding tank 203
Feed opening is closed, and the different dusty materials of two kinds pre-processed are separately added into two powder feeding tanks, in print procedure, is read every
The image information of layer is big according to image when power spreading device runs to the position if there is the image of powder in powder feeding tank 203
It is small, in the feed opening of the corresponding one section of closing powder feeding tank 103 in picture position, and 203 corresponding one sections of feed openings of powder feeding tank are opened,
After power spreading device is run to image, 203 feed opening of powder feeding tank is closed, opens the feed opening of powder feeding tank 103, successively printing knot
Shu Hou obtains the joint product of two kinds of dusty materials.
It should be noted that above method step is by taking the multi-chamber power spreading device that two powder feeding tanks form as an example, with phase
The integrated combined type printing equipment cooperation of the two kinds of printing heads matched, can get the joint product of two kinds of dusty materials；This field
Technical staff is readily apparent that the multi-chamber powder unit formed using three, four or more powder feeding tanks cooperates a variety of beat
The integrated combined type printing equipment of spray head is printed, the joint product of three kinds, four kinds or more kinds of materials can be obtained；And it respectively supplies
Powder tank can correspond to the varigrained dusty material of same kind, also belong to field of the present invention.
There are two types of schemes to realize that different types of printing head is integrated for combined type printing equipment of the present invention, Integrated Solution
One as shown in fig. 6, the combined type printing equipment by different types of printing head integrated installation at the same printing equipment bottom
On plate, such as two kinds of printing heads (the 300 and 301) integrated installation for corresponding to 2 powder feeding tanks is controlled on printing equipment bottom plate 302
It makes inside the same printing equipment of the same integrated installation of Driver Card of these printing heads, every kind of printing head is corresponding a kind of viscous
Agent is tied, binder is respectively stored in different print cartridges, and the ink road between print cartridge and printing head is mutually indepedent, according to figure
Feature selecting opens or closes corresponding printing head, and the solidification printing of different resolution, different binders can be realized.
It is not only limited to that two kinds of printing head is installed on printing equipment bottom plate in this example, can be installed according to actual needs with arrangement
A plurality of types of printing heads.
Integrated Solution two as shown in fig. 7, the combined type printing equipment include two groups installed in its direction of motion and
Independent printing equipment more than two, these printing equipments are arranged successively in sequence to be numbered, as Head1 (400),
Head2 (401), Head3 (402) ..., all printing equipments share a movement mould group 407, each independent printing equipment
Bottom plate on the printing head of same specification is installed, the motion control of each printing equipment is independent of one another, every kind of printing equipment
A kind of binder is filled inside print cartridge, its binder characteristic of different print systems is different.The combined type printing equipment is in work
The two sides for making region are designed with cleaning protection station 404,405,406 ..., and a kind of printing dress is only stopped at each cleaning protection station
It sets, if cleaning protection station 404 is corresponding printing equipment Head1 (400), cleaning protection station 405 is corresponding printing equipment Head2 (401),
Cleaning protection station 406 is corresponding printing equipment Head3 (402), it acts as cleaning and protecting printing equipment, when power spreading device is laid with
When different dusty material, then corresponding printing equipment activates automatically and in print state, positioned at front end printing equipment then
First move to opposite cleaning station protects station to be waited accordingly, it then activates printing equipment move in the X-axis direction powdering
Level carries out ink-jet, and the cleaning station that remaining printing equipment then rests on work box two sides waits ink-jet instruction next time.
More material mixed organizations of the present invention include multiple independent solid-liquid mixers, each solid-liquid mixing dress
The composition set includes: dusty material conveying mechanism, dusty material weighing system, liquid precise metering device, liquid feeding system, stirring
Device, control unit.Wherein: the effect of dusty material conveying mechanism is that dusty material is transported to metering from ground or other places
In container；The effect of dusty material weighing system is weighed to the dusty material in each measuring container, and according to system
The solid-liquid mixed proportion of setting, automatically controls the additional amount of dusty material；The effect of liquid precise metering device is according to system
The solid-liquid mixed proportion of setting measures the additional amount of simultaneously liquid with precise control；The effect of liquid feeding system is to guarantee fluent material
Supply in real time and storage；The effect of blender is that the dusty material that will be measured and liquid are uniformly mixed, to be mixed to finish
Afterwards, mixture is emitted into corresponding power spreading device inside cavity；The effect of control unit is reception host computer order, and according to
Printing technology executes logic output, controls the logical action of each subelement, completes solid-liquid mixing.
In order to meet the printing of multiple material, need to mix different materials in advance, the scheme taken, which is that setting, to be put on
The solid-liquid mixer stated is centrally placed, and independently of one another, metering is unaffected, and every kind of solid-liquid mixer stores difference respectively
Dusty material and corresponding fluent material, the dusty material mixed is then transported to power spreading device not by control mechanism
With cavity in, each cavity has a set of independent material-level detecting device and helical conveyer system, can the independent control cavity
Interior powdering.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, at the same time, for those skilled in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (10)
1. a kind of 3D printing equipment of more Material claddings, which is characterized in that the printing equipment includes multi-chamber power spreading device；Institute
Stating multi-chamber power spreading device is elongated hollow body, and inner cavity can be used for storing dusty material；
The multi-chamber power spreading device includes two or more powder feeding tanks, and the powder feeding tank is along the direction perpendicular to powder supply slot length
Adjacent straight line arrangement or adjacent array arrangement；
Each powder feeding tank is equipped with individual feed inlet and feed opening；
Selective blanking device is equipped at the feed opening of each powder feeding tank, the selectivity blanking device is by along the powder supply
Slot length direction is arranged in the composition of multiple expansion body units at feed opening, closely connects cloth between the multiple expansion body unit
The feed opening channel of the full powder feeding tank.
2. a kind of 3D printing equipment of more Material claddings according to claim 1, which is characterized in that each powder feeding tank
Feed opening the power spreading device lower part be connected to, form the discharge port (111) of the power spreading device.
3. a kind of 3D printing equipment of more Material claddings according to claim 1, which is characterized in that filled in the powder feeding tank
There is spiral conveying mechanism, dusty material is transported to each position of powder supply slot chamber.
4. a kind of 3D printing equipment of more Material claddings according to claim 1, which is characterized in that each expander
Unit has independent expansion driven pipeline and independent control module.
5. a kind of 3D printing equipment of more Material claddings according to claim 4, which is characterized in that the expansion body unit
Length be 10-100mm, material be corrosion resistant malleable material.
6. a kind of 3D printing equipment of more Material claddings according to claim 1, which is characterized in that the multi-chamber powdering
The side of device is equipped with vibration device, for vibrating the power spreading device and dusty material.
7. a kind of 3D printing equipment of more Material claddings described in -6 any one according to claim 1, which is characterized in that described
3D printing equipment further includes combined type printing equipment, and the combined type printing equipment is by the multiple types suitable for different binders
Printing head set form.
8. a kind of 3D printing equipment of more Material claddings described in -6 any one according to claim 1, which is characterized in that described
3D printing equipment further includes multiple material mixed organization, and the multiple material mixed organization includes multiple independent solid-liquid mixing dresses
It sets.
9. a kind of 3D printing method, which is characterized in that utilize a kind of described in any item 3D of more Material claddings of claim 1-9
Printing device is opened and closed the part institute of the selective blanking device by the multi-chamber power spreading device according to system command
Expansion body unit is stated, to control the part feed opening blanking of the corresponding powder feeding tank, completes the powder bed paving of more Material claddings
If；Then the binder for being laid with powder layer material is suitable for according to the corresponding injection of system command by composite printing device,
Realize the local solidification for being laid with powder layer material；Powder bed laying and binder injection are so repeated, until having been formed
The product of whole more Material claddings.
10. a kind of 3D printing method according to claim 9, which is characterized in that specifically includes the following steps:
1) using three-dimensional graphics software, the composite three-dimensional model comprising various powders material is drawn, after threedimensional model is sliced, is pressed
Every layer of two dimensional image is imported printer control system by page order；
2) different types of dusty material is pre-processed, is added to individually from the multi-chamber power spreading device feed inlet respectively
The powder feeding tank, it is described selectivity cutting agency all expansion close；
3) two dimensional image for reading current printable layer opens one section or whole of the corresponding powder feeding tank according to the layer data of reading
Feed opening starts powdering；
4) when the multi-chamber power spreading device is run to when forward two-dimensional viewing needs to be laid with the position of another dusty material, institute
Selective blanking device is stated according to system positioning and signal, controls the confession that the expander closure at the feed opening does not need blanking
Powder tank opens one section or whole feed openings of the powder feeding tank of the blanking of needs, realizes the switching of dusty material type；
5) after completing one layer of powdering, the composite printing device setting in motion, in powder bed selectively jet binder；
6) step 3, step 4) and step 5) are repeated, until printing terminates；
7) after the completion of binder hardening, it is removed without the dusty material of jet binder, obtains more Material cladding products.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976870A (en) * | 2019-12-26 | 2020-04-10 | 西安铂力特增材技术股份有限公司 | Accurate powder supply system and supply method thereof |
| CN112140541A (en) * | 2020-09-15 | 2020-12-29 | 杭州德迪智能科技有限公司 | Powder supply and spreading system, forming equipment and powder supply and spreading method |
| CN112172139A (en) * | 2020-09-25 | 2021-01-05 | 河北工业大学 | Powder bonding 3D printing equipment and method for preparing complex geological model |
| CN112536026A (en) * | 2020-11-23 | 2021-03-23 | 河钢承德钒钛新材料有限公司 | Spherical denitration catalyst with lattice structure prepared by 3D printing and preparation method thereof |
| CN113290849A (en) * | 2021-05-24 | 2021-08-24 | 王祥宇 | Additive manufacturing method for powder-laying type line printing forming |
| CN115107274A (en) * | 2022-07-06 | 2022-09-27 | 重庆大学 | 3D printing equipment and printing method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270883A (en) * | 1999-08-18 | 2000-10-25 | 仲伟虹 | Equipment and process for layer manufacture |
| CN103331226A (en) * | 2013-07-04 | 2013-10-02 | 裕东（中山）机械工程有限公司 | Automatic cleaning powder supply device circulating in closed mode |
| US20140015172A1 (en) * | 2011-03-25 | 2014-01-16 | Bae Systems Plc | Additive layer manufacturing |
| CN103909655A (en) * | 2013-01-06 | 2014-07-09 | 北京国视国电科技有限公司 | 3D rapid forming three-dimensional printing apparatus and process |
| CN104028713A (en) * | 2014-05-28 | 2014-09-10 | 宁夏共享模具有限公司 | Multifunctional double-printing-head 3D printing equipment based on 3DP technology |
| US20140255666A1 (en) * | 2013-03-06 | 2014-09-11 | University Of Louisville Research Foundation, Inc. | Powder Bed Fusion Systems, Apparatus, and Processes for Multi-Material Part Production |
| US20170341303A1 (en) * | 2014-08-29 | 2017-11-30 | Exone Gmbh | Coater arrangement for a 3D printer |
| CN206812440U (en) * | 2017-05-19 | 2017-12-29 | 东北大学 | A kind of power spreading device of small-sized powdering formula 3D printer |
| 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 |
| US20180369917A1 (en) * | 2015-12-14 | 2018-12-27 | Safran Aircraft Engines | A device and a method for fabricating a three-dimensional part by selectively melting a powder bed |
| CN209903948U (en) * | 2019-02-27 | 2020-01-07 | 共享智能铸造产业创新中心有限公司 | Multi-material composite 3D printing equipment |
-
2019
- 2019-02-27 CN CN201910125410.1A patent/CN109910297A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270883A (en) * | 1999-08-18 | 2000-10-25 | 仲伟虹 | Equipment and process for layer manufacture |
| US20140015172A1 (en) * | 2011-03-25 | 2014-01-16 | Bae Systems Plc | Additive layer manufacturing |
| CN103909655A (en) * | 2013-01-06 | 2014-07-09 | 北京国视国电科技有限公司 | 3D rapid forming three-dimensional printing apparatus and process |
| US20140255666A1 (en) * | 2013-03-06 | 2014-09-11 | University Of Louisville Research Foundation, Inc. | Powder Bed Fusion Systems, Apparatus, and Processes for Multi-Material Part Production |
| CN103331226A (en) * | 2013-07-04 | 2013-10-02 | 裕东（中山）机械工程有限公司 | Automatic cleaning powder supply device circulating in closed mode |
| CN104028713A (en) * | 2014-05-28 | 2014-09-10 | 宁夏共享模具有限公司 | Multifunctional double-printing-head 3D printing equipment based on 3DP technology |
| US20170341303A1 (en) * | 2014-08-29 | 2017-11-30 | Exone Gmbh | Coater arrangement for a 3D printer |
| US20180369917A1 (en) * | 2015-12-14 | 2018-12-27 | Safran Aircraft Engines | A device and a method for fabricating a three-dimensional part by selectively melting a powder bed |
| CN206812440U (en) * | 2017-05-19 | 2017-12-29 | 东北大学 | A kind of power spreading device of small-sized powdering formula 3D printer |
| 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 |
| CN209903948U (en) * | 2019-02-27 | 2020-01-07 | 共享智能铸造产业创新中心有限公司 | Multi-material composite 3D printing equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976870A (en) * | 2019-12-26 | 2020-04-10 | 西安铂力特增材技术股份有限公司 | Accurate powder supply system and supply method thereof |
| CN110976870B (en) * | 2019-12-26 | 2022-03-08 | 西安铂力特增材技术股份有限公司 | Accurate powder supply system and supply method thereof |
| CN112140541A (en) * | 2020-09-15 | 2020-12-29 | 杭州德迪智能科技有限公司 | Powder supply and spreading system, forming equipment and powder supply and spreading method |
| CN112140541B (en) * | 2020-09-15 | 2022-11-25 | 杭州德迪智能科技有限公司 | Powder supply and spreading system, forming equipment and powder supply and spreading method |
| CN112172139A (en) * | 2020-09-25 | 2021-01-05 | 河北工业大学 | Powder bonding 3D printing equipment and method for preparing complex geological model |
| CN112536026A (en) * | 2020-11-23 | 2021-03-23 | 河钢承德钒钛新材料有限公司 | Spherical denitration catalyst with lattice structure prepared by 3D printing and preparation method thereof |
| CN113290849A (en) * | 2021-05-24 | 2021-08-24 | 王祥宇 | Additive manufacturing method for powder-laying type line printing forming |
| CN113290849B (en) * | 2021-05-24 | 2022-10-25 | 王祥宇 | Additive manufacturing method for powder-spreading type line printing forming |
| CN115107274A (en) * | 2022-07-06 | 2022-09-27 | 重庆大学 | 3D printing equipment and printing method thereof |
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