CN110328850A - A kind of bonded 3D printer of large size powder bed hydrojet - Google Patents
A kind of bonded 3D printer of large size powder bed hydrojet Download PDFInfo
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- CN110328850A CN110328850A CN201910436862.1A CN201910436862A CN110328850A CN 110328850 A CN110328850 A CN 110328850A CN 201910436862 A CN201910436862 A CN 201910436862A CN 110328850 A CN110328850 A CN 110328850A
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- powder bed
- movement mechanism
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- adhesion promoter
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- 239000000843 powder Substances 0.000 title claims abstract description 113
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 52
- 238000003892 spreading Methods 0.000 claims abstract description 27
- 230000007480 spreading Effects 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims description 36
- 230000003287 optical effect Effects 0.000 claims description 34
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 230000008450 motivation Effects 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 238000007639 printing Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 21
- 238000010146 3D printing Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention provides a kind of large-scale powder bed hydrojet bonded 3D printer, including packaged type powder bed, double gantry stands, X-axis movement mechanism, Y-axis movement mechanism, Z axis movement mechanism, power spreading device and adhesion promoter are sprayed device, X-axis movement mechanism, it is orthogonal between Y-axis movement mechanism and Z axis movement mechanism, Y-axis movement mechanism connects double gantry stands and Z axis movement mechanism, adhesion promoter is sprayed device and connect with X-axis movement mechanism and be installed on power spreading device side, power spreading device is connected with Z axis movement mechanism, powder bed driving mechanism driving powder bed is moved back and forth with expanding printing area.Beneficial effects of the present invention: it is laid on after being mixed using dusty material with binder on powder bed, then device is sprayed by adhesion promoter and sprays adhesion promoter, curing molding after being reacted with binder, finally print 3D solid, printable moulded dimension range is big, printing effect is high, low in cost, the production quick Fabrication particularly suitable for large industrialized model.
Description
Technical field
The present invention relates to 3D printing equipment technical field more particularly to a kind of bonded 3D printers of large-scale powder bed hydrojet.
Background technique
With the continuous development of 3D printing technique, various forms of 3D printing equipment are continuously emerged.These 3D printing equipment
It is mostly desktop grade, it can only the lesser model of stamp with the size.And 3D printer efficiency is all lower, and time-consuming for printing.Print material
Expect expensive.Therefore it is badly in need of developing a kind of 3D printing equipment of higher large scale threedimensional model of printing effect, to meet people
To the printing demand of large scale model.
Summary of the invention
In view of this, the embodiment provides a kind of bonded 3D printer of large-scale powder bed hydrojet, it can be quick
Efficiently complete the 3D printing of large-scale three dimensional model.
The embodiment of the present invention provides a kind of large-scale bonded 3D printer of powder bed hydrojet, including packaged type powder bed, double
Gantry stand, X-axis movement mechanism, Y-axis movement mechanism, Z axis movement mechanism, power spreading device and adhesion promoter are sprayed device, it is described can
Mobile powder bed includes powder bed driving mechanism and powder bed, and the powder bed is located inside double gantry stands, the powder bed driving
Mechanism connects the powder bed and the powder bed can be driven mobile, and the Y-axis movement mechanism is set to double gantry stand tops,
The Y-axis movement mechanism vertically connects the Z axis movement mechanism, and Z axis movement mechanism lower end vertically connects the X-axis movement
Mechanism, the X-axis movement mechanism connects the power spreading device and the adhesion promoter is sprayed device, and the power spreading device is set to institute
The top of powder bed is stated, the power spreading device includes powdering feed bin, folding motor and T-type folding baffle, the powdering feed bin back side
It is adjacent to the T-type folding baffle, the folding motor output shaft connects the T-type and opens and closes baffle, the X-axis movement mechanism, institute
Y-axis movement mechanism and the Z axis movement mechanism are stated for moving the power spreading device to predeterminated position, the folding motor driven
T-type folding baffle, which moves up, opens the powdering feed bin, and the folding baffle of T-type described in the folding motor driven is to moving down
Dynamic to close the powdering feed bin, the power spreading device is sprayed dress for being laid with dusty material, the adhesion promoter on the powder bed
It sets for the predeterminated position injection swelling binder on the powder bed.
Further, the powder bed driving mechanism includes powder bed support frame, powder bed driving motor, optical axis guide rail slide unit, light
Axis rail and powder bed drive lead screw, and the powder bed driving motor is fixedly mounted on the powder bed support frame, the powder bed driving
Lead screw one end connects the powder bed driving motor output shaft, and the powder bed driving lead screw other end connects the powder bed, the powder
Bed support frame top two sides are respectively provided with an optical axis guide rail slide unit, and powder bed two sides of the bottom are respectively provided with an optical axis and lead
Rail, each optical axis guide rail pass through an optical axis guide rail slide unit and slidably, and the powder bed setting is in the optical axis guide rail
On, the powder bed driving motor is by driving the powder bed to drive lead screw that the powder bed is driven to carry out on the optical axis guide rail directly
Line is mobile.
Further, the powdering feed bin is right-angle prismatic column, and powdering feed bin upper end connects the Z axis fitness machine
Structure, T-type folding baffle upper end are fixed on folding baffle sliding block, open and close gear described in the output axis connection of the folding motor
Plate sliding block, the powdering feed bin is for storing 3D printing dusty material.
Further, it includes adhesion promoter liquid reserve tank, solution feed pump and solution feed pump mounting blocks that the adhesion promoter, which is sprayed device, described
Adhesion promoter liquid reserve tank is mounted on one jiao of double gantry stands, and the adhesion promoter liquid reserve tank passes through adhesion promoter delivery pipe and the confession
Liquid pump entrance is connected, and the feed flow pump discharge is equipped with adhesion promoter nozzle, and the solution feed pump is mounted on the solution feed pump mounting blocks,
The solution feed pump mounting blocks are fixed on the X-axis movement mechanism.
Further, the X-axis movement mechanism includes X-axis motor, synchronous pulley, X-axis linear guide and X-axis linear guide
Sliding block, the X-axis motor are mounted on powdering feed bin side, and the X-axis motor output shaft connects the synchronous pulley, described
Synchronous pulley passes through X-axis straight-line guide rail slide block described in synchronous band connection, and the X-axis linear guide is fixedly mounted on the powdering material
On storehouse, the X-axis motor drives X-axis guide rail sliding block to do along the x axis in the X-axis linear guide directly by the synchronous belt
Line movement.
Further, the Y-axis movement mechanism includes Y-axis crossbeam, Y-axis lead screw and y-axis motor, and the Y-axis crossbeam is fixed
On double portal frames, the Y-axis linear guide is equipped in the Y-axis crossbeam, it is sliding to be equipped with Y-axis in the Y-axis linear guide
Block, Y-axis crossbeam side are equipped with Y-axis lead screw mounting base, and the Y-axis crossbeam other side is equipped with y-axis motor mounting base, the Y
Axial filament thick stick is mounted in the Y-axis lead screw mounting base, and the y-axis motor is mounted in the y-axis motor mounting base, the Y-axis
Motor output shaft connects the Y-axis lead screw, and the y-axis motor drives the Y-axis sliding block in Y direction by the Y-axis lead screw
On move in a straight line.
Further, the Z axis movement mechanism includes Z axis motor, Z axis lead screw and two symmetrically arranged Z axis optical axis guide rails,
Two Z axis optical axis guide rail one end connect the powdering feed bin, and the other end connects Z axis motor mounting plate, the Z axis motor installation
On the Z axis motor mounting plate, the Z axis motor output shaft connects the Z axis lead screw, and the two Z axis optical axis guide rails are arranged
There is crosshead shoe, the crosshead shoe is respectively perpendicular the connection Y-axis lead screw and Z axis lead screw, the crosshead shoe lower end connection
The Y-axis upper end of slide block, the Z axis motor drive the power spreading device and the adhesion promoter to be sprayed dress by the Z axis screw rod
It sets and is moved in a straight line along Z-direction.
Further, the solution feed pump is peristaltic pump.
The technical solution that the embodiment of the present invention provides has the benefit that a kind of large-scale powder bed hydrojet of the present invention is viscous
Eliminant 3D printer is laid on powder bed after being mixed using dusty material with binder, is then sprayed device spray by adhesion promoter
Adhesion promoter is penetrated, curing molding after reacting with binder finally prints 3D solid, and powder bed can be driven by powder bed driving mechanism
It is moved, the printing of large scale model is realized with the print range of expanding printing machine, printing effect of the present invention is high, cost
Cheap, particularly suitable for large industrialized model production quick Fabrication.Model system can be carried out towards users such as enterprise, schools
It makes, and can meet the needs of personal personalization.
Detailed description of the invention
Fig. 1 is a kind of large-scale powder bed liquid-spraying type 3D printer overall schematic.
Fig. 2 is the structural schematic diagram of X-axis movement mechanism 3 in Fig. 1
Fig. 3 is the structural schematic diagram that power spreading device 6 and adhesion promoter are sprayed device 7 in Fig. 1.
Fig. 4 is the schematic rear view that adhesion promoter is sprayed device 7 in Fig. 1.
In figure: 1- packaged type powder bed, 11- powder bed support frame, 12- powder bed driving motor, 13- optical axis guide rail slide unit, 14-
Optical axis guide rail, 15- powder bed driving lead screw, 16- powder bed, the bis- gantry stands of 2-, 3-X shaft movement mechanism, 31-X spindle motor, 32- are same
Step belt wheel, 33- synchronous belt, 34-X axis linear guide, 35-X axis straight-line guide rail slide block, 4-Y shaft movement mechanism, 41-Y axis crossbeam,
42-Y axis linear guide, 43-Y axial filament thick stick mounting base, 44-Y axial filament thick stick, 45-Y axis sliding block, 46-Y spindle motor, 47-Y spindle motor peace
Fill seat, 5-Z shaft movement mechanism, 51- crosshead shoe, 52-Z axis optical axis guide rail, 53-Z spindle motor mounting plate, 54-Z spindle motor, 55-
Z axis lead screw, 6- power spreading device, 61- powdering feed bin, 62- open and close motor, and 63-T type opens and closes baffle, and 64- opens and closes baffle sliding block, 65-
Dust outlet, 7- adhesion promoter are sprayed device, 71- adhesion promoter liquid reserve tank, 72- adhesion promoter delivery pipe, 73- solution feed pump, 74- adhesion promoter
Nozzle, 75- solution feed pump mounting blocks.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Fig. 1 and Fig. 2 are please referred to, the embodiment provides a kind of bonded 3D printer of large-scale powder bed hydrojet, packets
Include packaged type powder bed 1, double gantry stands 2, X-axis movement mechanism 3, Y-axis movement mechanism 4 and Z axis movement mechanism 5, power spreading device 6
Device 7 is sprayed with adhesion promoter.
The packaged type powder bed 1 includes powder bed driving mechanism and powder bed 16, and the powder bed driving mechanism includes powder bed branch
Support 11, powder bed driving motor 12, optical axis guide rail slide unit 13, optical axis guide rail 14 and powder bed drive lead screw 15, the powder bed driving
Motor 12 is fixedly mounted on the powder bed support frame 11, and the powder bed driving 15 one end of lead screw connects the powder bed driving motor
12 output shafts, powder bed driving 15 other end of lead screw connect the powder bed 16, and the 11 top two sides of powder bed support device are each
Equipped with an optical axis guide rail slide unit 13,16 two sides of the bottom of powder bed are respectively provided with an optical axis guide rail 14, and each optical axis is led
Rail 14 passes through an optical axis guide rail slide unit 13 and slidably, and the setting of powder bed 16 is on the optical axis guide rail 14, the powder
Bed driving motor 12 is by driving the powder bed to drive lead screw 15 that the powder bed 16 is driven to carry out on the optical axis guide rail 14
Straight reciprocating, to extend 3D printing area.
It includes that X-axis motor 31, synchronous pulley 32, X-axis linear guide 34 and X-axis linear guide are sliding that the X-axis, which moves 3 mechanisms,
Block 35, the X-axis motor 31 are mounted on 6 side of power spreading device, and the X-axis motor 31 exports synchronous pulley described in axis connection
32, the synchronous pulley 32 connects the X-axis straight-line guide rail slide block 35 by synchronous belt 33, and the X-axis linear guide 34 is fixed
It is mounted on the power spreading device 6, the X-axis motor 31 drives the X-axis guide rail sliding block 35 in institute by the synchronous belt 33
It states and is moved in a straight line along the x axis in X-axis linear guide 34.
The Y-axis movement mechanism 4 includes Y-axis crossbeam 41, Y-axis lead screw 44 and y-axis motor 46, and horizontal 41 beams of the Y-axis are fixed
On double portal frames 2, it is equipped with the Y-axis linear guide 42 in the Y-axis crossbeam 41, is set in the Y-axis linear guide 42
There is Y-axis sliding block 45,41 side of Y-axis crossbeam is equipped with Y-axis lead screw mounting base 43, and 41 other side of Y-axis crossbeam is equipped with Y-axis electricity
Machine mounting base 47, the Y-axis lead screw 44 are mounted in the Y-axis lead screw mounting base 43, and the y-axis motor 46 is mounted on the Y
In spindle motor mounting base 47, the y-axis motor 46 exports Y-axis lead screw 44 described in axis connection, and the y-axis motor 46 passes through the Y
Axial filament thick stick 44 drives the Y-axis sliding block 45 to move in a straight line in the Y-axis direction.
The Z axis movement mechanism 5 include Z axis motor 54, Z axis lead screw 55 and two symmetrically arranged Z axis optical axis guide rails 53, two
Described 53 one end of Z axis optical axis guide rail connects the power spreading device 6, and the other end connects Z axis motor mounting plate 53, the Z axis motor
54 are mounted on the Z axis motor mounting plate 53, and the Z axis motor 54 exports Z axis lead screw 55 described in axis connection, two Z axis
Optical axis guide rail 52 is arranged with crosshead shoe 51, and the crosshead shoe 51, which is respectively perpendicular, is threadedly coupled the Y-axis lead screw 44 and Z axis silk
Thick stick 55,51 lower end of crosshead shoe connect 45 upper end of Y-axis sliding block, and the Z axis motor 54 passes through 55 band of Z axis screw rod
It moves the power spreading device 6 and the adhesion promoter is sprayed device 7 and moves in a straight line along Z-direction.
Fig. 3 and Fig. 4 are please referred to, the power spreading device 6 includes that powdering feed bin 61, folding motor 62 and T-type open and close baffle 63,
The powdering feed bin 61 is right-angle prismatic column, and 61 upper end of powdering feed bin connects the Z axis optical axis guide rail 52, the powdering material
61 back side of storehouse is adjacent to the T-type folding baffle 63, and dust outlet 65, the T-type folding gear are equipped with below the powdering feed bin 61
63 upper end of plate is fixed on folding baffle sliding block 64, folding baffle sliding block 64 described in the output axis connection of the folding motor 62,
The powdering feed bin 61 includes basis material and binder, the folding electricity for storing 3D printing dusty material, dusty material
Machine 62, which controls the folding baffle sliding block 64 and moves up, drives T-type folding baffle 63 to move up, thus described in exposing
Dust outlet 65 is laid on printing powder uniformly on the powder bed 16 from the dust outlet 65, and the folding motor 62 is logical
Crossing to control the folding baffle sliding block 64 and move down drives T-type folding baffle 63 to move down, to close the paving
Filler bin 61 not re-lay printing powder.
The adhesion promoter is sprayed device 7 and includes adhesion promoter liquid reserve tank 71, solution feed pump 73 and solution feed pump mounting blocks 75, described to help
Stick liquid reserve tank 71 is mounted on 2 one jiaos of double gantry stands, stores adhesion promoter in the adhesion promoter liquid reserve tank 71, described to help
Glutinous agent can react with the binder in dusty material promotes the curing molding of dusty material, and the adhesion promoter liquid reserve tank 71 is logical
It crosses adhesion promoter delivery pipe 72 to be connected with 73 entrance of solution feed pump institute, the solution feed pump 73 is peristaltic pump, and the solution feed pump 73 goes out
Mouth is equipped with adhesion promoter nozzle 74, and the solution feed pump 73 is mounted on the solution feed pump mounting blocks 75, the solution feed pump mounting blocks 75
Connect the X-axis straight-line guide rail slide block 35, with the X-axis guide rail sliding block 35 in the X-axis linear guide 34 along the x axis
It moves in a straight line.
It is first uniform on the powder bed 16 by the power spreading device 6 in the present embodiment when carrying out dusty material 3D printing
It is laid with one layer of dusty material, then the adhesion promoter is sprayed device 7 and carries out injection adhesion promoter by desired trajectory, then proceedes to powdering
With injection adhesion promoter, bonded by layer upon layer until threedimensional model forms；When the large-scale three dimensional model for needing to print is beyond institute
When stating the limit moving range of X-axis movement mechanism 3, Y-axis movement mechanism 4 and Z axis movement mechanism 5, the movement powder bed can be passed through
16 framing faces are printed, and after completing the printing of single width face, the powder bed driving motor 12 drives the powder bed 16 one section mobile
Distance then proceedes to the printing that powdering completes next breadth with expanding printing range, so completes the single layer printing of entire breadth
Afterwards, the printing that next layer is then carried out by identical method, bonds to form large-scale three dimensional model by layer upon layer.
The present invention carries out specific steps when threedimensional model manufacture are as follows:
Preparation stage before S1,3D printing: closing the powdering feed bin 61, by dusty material (including basis material and bonding
Agent) it is fitted into the powdering feed bin 61 after mixing, adhesion promoter is fitted into the adhesion promoter liquid reserve tank 71, is helped described in cleaning
Stick nozzle 74 and confirm do not block；
S2, powdering stage: the powdering feed bin 61,4 setting in motion of Y-axis movement mechanism, by predetermined area are opened
After dusty material is uniformly laid on the powder bed 16, the powdering feed bin 61 is closed；
S3, bisque strike off the stage: controlling the powdering material by the Y-axis movement mechanism 4 and the Z axis movement mechanism 5
The lower edge in storehouse 61 strikes off be laid with dusty material；
S4, injection adhesion promoter stage: start the solution feed pump 73, while being transported by the X-axis movement mechanism 3, the Y-axis
Motivation structure 4 and the Z axis movement mechanism 5 control the injection that the adhesion promoter nozzle 74 is carried out adhesion promoter by desired trajectory, when helping
After the completion of stick injection, the solution feed pump 73 is closed；If you need to carry out the printing of framing face, then controlled by the powder bed driving motor 12
The mobile breadth width of the powder bed 16 is made, powdering is continued to execute on new breadth, strike off and sprays adhesion promoter movement, directly
It is printed to single layer is completed.What it is such as progress is multilayer printing, then after completing first layer scanning, the Z axis movement mechanism 5 controls institute
It states power spreading device 6 and the adhesion promoter is sprayed the height that device 7 rises a thickness, continue second layer powdering, strike off and spray
Adhesion promoter is penetrated to act, such to recycle, successively bonding is accumulated up to completing threedimensional model,
S5, model take out with the material recovery stage: after the completion of three dimensional model printing, close printer, by around it not
After participating in molding dusty material removal, model is taken out, and is recycled to molding dusty material is had neither part nor lot in.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of bonded 3D printer of large size powder bed hydrojet, it is characterised in that: including packaged type powder bed, double gantry stands, X
Shaft movement mechanism, Y-axis movement mechanism, Z axis movement mechanism, power spreading device and adhesion promoter are sprayed device, the packaged type powder bed
Including powder bed driving mechanism and powder bed, the powder bed is located inside double gantry stands, and the powder bed driving mechanism connects institute
It states powder bed and the powder bed can be driven mobile, the Y-axis movement mechanism is set to double gantry stand tops, the Y-axis fortune
Motivation structure vertically connects the Z axis movement mechanism, and Z axis movement mechanism lower end vertically connects the X-axis movement mechanism, described
X-axis movement mechanism connects the power spreading device and the adhesion promoter is sprayed device, and the power spreading device is set to the powder bed
Top, the power spreading device include powdering feed bin, folding motor and T-type folding baffle, and the powdering feed bin back side is adjacent to the T
Type opens and closes baffle, and the folding motor output shaft connects the T-type and opens and closes baffle, the X-axis movement mechanism, Y-axis movement
For moving the power spreading device to predeterminated position, T-type described in the folding motor driven is opened for mechanism and the Z axis movement mechanism
It closes baffle and moves up the opening powdering feed bin, T-type folding baffle, which moves down, described in the folding motor driven closes institute
Powdering feed bin is stated, the power spreading device is sprayed device and is used for for being laid with dusty material, the adhesion promoter on the powder bed
Predeterminated position sprays swelling binder on the powder bed.
2. a kind of bonded 3D printer of large-scale powder bed hydrojet as described in claim 1, it is characterised in that: the powder bed driving
Mechanism includes powder bed support frame, powder bed driving motor, optical axis guide rail slide unit, optical axis guide rail and powder bed driving lead screw, the powder bed
Driving motor is fixedly mounted on the powder bed support frame, and it is defeated that powder bed driving lead screw one end connects the powder bed driving motor
Shaft, the powder bed driving lead screw other end connect the powder bed, and the powder bed support frame top two sides are respectively provided with the light
Axis rail slide unit, powder bed two sides of the bottom are respectively provided with an optical axis guide rail, and each optical axis guide rail passes through the light
Axis rail slide unit and slidably, the powder bed are arranged on the optical axis guide rail, and the powder bed driving motor passes through described in driving
Powder bed driving lead screw drives the powder bed to move linearly on the optical axis guide rail.
3. a kind of bonded 3D printer of large-scale powder bed hydrojet as described in claim 1, it is characterised in that: the powdering feed bin
For right-angle prismatic column, powdering feed bin upper end connects the Z axis movement mechanism, and T-type folding baffle upper end is fixed on out
It closes on baffle sliding block, folding baffle sliding block described in the output axis connection of the folding motor, the powdering feed bin is for storing 3D
Print dusty material.
4. a kind of bonded 3D printer of large-scale powder bed hydrojet as described in claim 1, it is characterised in that: the adhesion promoter spray
Drip apparatus includes adhesion promoter liquid reserve tank, solution feed pump and solution feed pump mounting blocks, and the adhesion promoter liquid reserve tank is mounted on described double gantry
One jiao of rack, the adhesion promoter liquid reserve tank is connected by adhesion promoter delivery pipe with the feed flow pump intake, the feed flow pump discharge
Equipped with adhesion promoter nozzle, the solution feed pump is mounted on the solution feed pump mounting blocks, and the solution feed pump mounting blocks are fixed on the X
On shaft movement mechanism.
5. a kind of bonded 3D printer of large-scale powder bed hydrojet as described in claim 1, it is characterised in that: the X-axis movement
Mechanism includes X-axis motor, synchronous pulley, X-axis linear guide and X-axis straight-line guide rail slide block, and the X-axis motor is mounted on the paving
Filler bin side, the X-axis motor output shaft connect the synchronous pulley, and the synchronous pulley passes through X described in synchronous band connection
Axis straight-line guide rail slide block, the X-axis linear guide are fixedly mounted on the powdering feed bin, and the X-axis motor passes through described same
Step band driving X-axis guide rail sliding block moves in a straight line along the x axis in the X-axis linear guide.
6. a kind of bonded 3D printer of large-scale powder bed hydrojet as described in claim 1, it is characterised in that: the Y-axis movement
Mechanism includes Y-axis crossbeam, Y-axis lead screw and y-axis motor, and the Y-axis crossbeam is fixed on double portal frames, the Y-axis crossbeam
It is interior to be equipped with the Y-axis linear guide, Y-axis sliding block is equipped in the Y-axis linear guide, Y-axis crossbeam side is equipped with Y-axis lead screw
Mounting base, the Y-axis crossbeam other side are equipped with y-axis motor mounting base, and the Y-axis lead screw is mounted on the Y-axis lead screw mounting base
On, the y-axis motor is mounted in the y-axis motor mounting base, Y-axis lead screw described in the y-axis motor output axis connection, described
Y-axis motor drives the Y-axis sliding block to move in a straight line in the Y-axis direction by the Y-axis lead screw.
7. a kind of bonded 3D printer of large-scale powder bed hydrojet as claimed in claim 6, it is characterised in that: the Z axis movement
Mechanism includes Z axis motor, Z axis lead screw and two symmetrically arranged Z axis optical axis guide rails, and two Z axis optical axis guide rail one end connect institute
Powdering feed bin is stated, the other end connects Z axis motor mounting plate, and the Z axis motor is mounted on the Z axis motor mounting plate, the Z
Spindle motor exports Z axis lead screw described in axis connection, and the two Z axis optical axis guide rails are arranged with crosshead shoe, the crosshead shoe difference
The Y-axis lead screw and Z axis lead screw are vertically connected, the crosshead shoe lower end connects the Y-axis upper end of slide block, the Z axis motor
It drives the power spreading device and the adhesion promoter to be sprayed device by the Z axis screw rod to move in a straight line along Z-direction.
8. a kind of bonded 3D printer of large-scale powder bed hydrojet as claimed in claim 4, it is characterised in that: the solution feed pump is
Peristaltic pump.
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| CN201910436862.1A CN110328850A (en) | 2019-05-23 | 2019-05-23 | A kind of bonded 3D printer of large size powder bed hydrojet |
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