CN107876778A - The metal three-dimensional printer and its Method of printing of a kind of fused glass pellet - Google Patents
The metal three-dimensional printer and its Method of printing of a kind of fused glass pellet Download PDFInfo
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- CN107876778A CN107876778A CN201610877108.8A CN201610877108A CN107876778A CN 107876778 A CN107876778 A CN 107876778A CN 201610877108 A CN201610877108 A CN 201610877108A CN 107876778 A CN107876778 A CN 107876778A
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- Prior art keywords
- printhead
- cleaning device
- metal
- mobile motor
- motor
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Classifications
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
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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
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
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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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
-
- 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 the metal three-dimensional printer and its Method of printing of fused glass pellet, metal three-dimensional printer includes printhead, molding seat, mobile motor component, silk supplies motor and cleaning device, printhead is used for extrusion molding material, moulding material includes metal material and binding agent, mobile motor component is used for the movement for driving printhead and molding seat, silk supply motor is used to convey thread moulding material into printhead, cleaning device and printhead are arranged in same level, cleaning device is located on the position of the periphery of molding seat, printhead can abut with cleaning device.Using cleaning device to printhead to unnecessary melt molding material, next layer of printing is carried out again, then image quality is improved, while row metal 3 D-printing is entered to the moulding material containing metal material using FDM molding mode, the shaping efficiency of this case metal three-dimensional printer is high and cost is low.
Description
Technical field
The present invention relates to metal 3 D-printing field, more particularly to a kind of metal three-dimensional printer of fused glass pellet and
Its Method of printing.
Background technology
3D printer is also known as three-dimensional printer, is a kind of machine using rapid shaping technique, using mathematical model file as
Basis, using moulding material, three-dimensional entity is constructed by way of successively printing.Before printing, it is necessary to utilize computer
Modeling software is modeled, then the threedimensional model built up " subregion " is cut into slices, so as to instruct 3D printer successively into section successively
Printing.3D printer obtains a wide range of applications in product manufacturing industry, and the operation principle and conventional printer of 3D printer are basic
It is identical, it is made up of control assembly, mechanical component, printhead, consumptive material (i.e. moulding material) and medium etc., prints principle also basic class
Seemingly.
A kind of existing conventional printing type is fused glass pellet (FDM), and it is by the printhead moved horizontally
Moulding material after extrusion heating melting, and successively stack to form threedimensional model in molding seat.Another printing type is sharp
Light sinters (SLM), and it is molded using selective laser sintering, general principle be with after one layer of powder laying with laser sintered, then
Again with powder lay one layer, then it is laser sintered once, circulation print 3 D stereo material object.
But above two Method of printing all has some limitations, if desired for powerful laser head or high temperature melting
To change, metallic print can be realized, this just needs the very professional protection of 3 D-printing equipment, and energy resource consumption is more, into
This is very high.
The content of the invention
For above-mentioned background technology, the first object of the present invention is to provide one kind and uses fused glass pellet mode and tool
The metal three-dimensional printer of standby automatically cleaning printhead ability.
The second object of the present invention is to provide one kind using fused glass pellet mode and possesses automatically cleaning printhead ability
Metal three-dimensional printer Method of printing.
The third object of the present invention is to provide one kind using fused glass pellet mode and possesses automatically cleaning printhead ability
Metal three-dimensional printer Method of printing.
In order to realize the first object of the present invention, the present invention provides a kind of metal three-dimensional printer of fused glass pellet,
It is used for extrusion molding material including printhead, molding seat, mobile motor component, silk supply motor and cleaning device, printhead,
Moulding material includes metal material and binding agent, and molding seat is used to carry moulding material, and mobile motor component includes X-axis movement electricity
Machine, Y-axis mobile motor part and Z axis mobile motor, X-axis mobile motor are used to drive the movement of printhead in the X-axis direction；Y-axis
Mobile motor is used to drive the movement of printhead in the Y-axis direction, and Z axis mobile motor is used to drive molding seat in the Z-axis direction
Movement, silk supply motor be used for convey thread moulding material into printhead, cleaning device and printhead are arranged on together
On one horizontal plane, cleaning device is located on the position of the periphery of molding seat, and printhead can abut with cleaning device.
From such scheme, the principle of picture is extruded into using printhead, moulding material includes metal material and binding agent,
Using FDM molding mode carry out 3 D-printing, the high cost of its shaping efficiency is low, and molten condition have metal material into
Section bar material, due to its metal material, and after printhead ejection, because ambient temperature is relatively low, molten silk is to the cold
Deformed retraction by the effect of internal stress, the molten silk of nozzle of printhead is liable to stick to around spout, can also exist clout from
Nozzle location flows out situation, and using cleaning device, printhead is moved to cleaning device annex and moved back and forth, and wipes cleaning device
Or the melt molding material that cleaning is unnecessary, then next layer of printing is carried out, then improve image quality.
Further scheme is that cleaning device is set in blade-like.
Further scheme is that cleaning device is arranged in a vertical direction.
Further scheme is that cleaning device is arranged in the horizontal direction.
Further scheme is that mobile motor component also includes moving horizontally motor, moves horizontally motor and is used to drive
Cleaning device moves in the horizontal plane.
Therefore the cleaning device set in scraper plate totally and can be cleaned promptly, and arrange vertically or water
Plain cloth put can the dissimilar material properties of more different materials be arranged, it can bring different wiping effects, while can be with
Actively printhead is cleaned by the way of walking wipes using cleaning device.
Further scheme is that metal three-dimensional printer also includes casing, and casing surrounds closed cavity, and casing is used for
Load printhead, molding seat, mobile motor component, silk supply motor and cleaning device.
Therefore it is incubated closed accommodating chamber, it is possible to reduce the thermal loss in heating process, contribute to three-dimensional article
The internal stress of body is present, and adds intensity between layers, while can prevent metal from aoxidizing.
Further scheme is that cleaning device is made by silica gel material.
Further scheme is that cleaning device is made by sponge material.
Therefore because temperature is higher, therefore need using the silica gel with resistance to elevated temperatures or sponge wipe clearly
Clean, it can further improve cleannes.
In order to realize the second purpose of the invention, the present invention provides a kind of beating for metal three-dimensional printer of fused glass pellet
Impression method, metal three-dimensional printer include printhead, molding seat, mobile motor component, silk supply motor and cleaning device, beaten
Print head is used for extrusion molding material, and moulding material includes metal material and binding agent, and molding seat is used to carry moulding material, mobile
Electric machine assembly includes X-axis mobile motor, Y-axis mobile motor part and Z axis mobile motor, and X-axis mobile motor is used to drive printhead
Movement in the X-axis direction；Y-axis mobile motor is used to drive the movement of printhead in the Y-axis direction, and Z axis mobile motor is used for
The movement of molding seat in the Z-axis direction is driven, silk supply motor is used to convey thread moulding material into printhead, cleaned
Device and printhead are arranged in same level, and Method of printing includes：Printhead extrusion molding material on molding seat；Printing
Head is moved to cleaning device and abutted with cleaning device；Printhead separates with cleaning device.
In order to realize the 3rd purpose of the invention, the present invention provides a kind of beating for metal three-dimensional printer of fused glass pellet
Impression method, it is characterised in that metal three-dimensional printer include printhead, molding seat, mobile motor component, silk supply motor and
Cleaning device, printhead are used for extrusion molding material, and moulding material includes metal material and binding agent, molding seat be used to carrying into
Section bar material, mobile motor component include X-axis mobile motor, Y-axis mobile motor part, Z axis mobile motor and move horizontally motor, X
Axle mobile motor is used to drive the movement of printhead in the X-axis direction；Y-axis mobile motor is used to drive printhead in Y direction
On movement, Z axis mobile motor is used to drive the movement of molding seat in the Z-axis direction, and silk supply motor is used to conveying thread
Moulding material into printhead, cleaning device and printhead are arranged in same level, and cleaning device is located at molding seat
On the position of periphery, move horizontally motor and be used to drive cleaning device to move in the horizontal plane, Method of printing includes：Printhead exists
Extrusion molding material on molding seat；Molding seat moves down pre-determined distance；Cleaning device is moved at printhead and and printhead
It is adjacent；Cleaning device separates with printhead.
From such scheme, the principle of picture is extruded into using printhead, moulding material includes metal material and binding agent,
Using FDM molding mode carry out 3 D-printing, the high cost of its shaping efficiency is low, and molten condition have metal material into
Section bar material, due to its metal material, and after printhead ejection, because ambient temperature is relatively low, molten silk is to the cold
Deformed retraction by the effect of internal stress, the molten silk of nozzle of printhead is liable to stick to around spout, can also exist clout from
Nozzle location flows out situation, using cleaning device, printhead is cleaned after one layer of printing is completed, concrete mode can adopt
With printhead actively mobile cleaning, or using cleaning device actively mobile cleaning, make cleaning device wipe or clean it is unnecessary
Melt molding material, then next layer of printing is carried out, then improve image quality.
Brief description of the drawings
Fig. 1 is the partial structural diagram of metal three-dimensional printer embodiment of the present invention.
Fig. 2 is metal three-dimensional printer embodiment cleaning principle schematic of the present invention.
Fig. 3 is the flow chart of the manufacture method embodiment of the three-dimensionally shaped silk of the present invention.
Fig. 4 is the screw extruder of manufacture method embodiment and the knot of molding extruder head of the three-dimensionally shaped silk of the present invention
Composition.
Fig. 5 is the schematic diagram when filamentary material of three-dimensionally shaped silk embodiment is in linear state and case of bending.
Fig. 6 is the test chart of three-dimensionally shaped silk embodiment.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
Metal three-dimensional printer first embodiment：
Reference picture 1, Fig. 1 are the partial structural diagrams of metal three-dimensional printer 1.Three-dimensional printer 1 includes casing 11, casing 11
The rectangular box body of 6 faces composition can be used, casing 11 surrounds the airtight cavity for three-dimensional imaging, X is provided with the cavity
Axle mobile motor 21, Y-axis mobile motor 22 and Z axis mobile motor 23, Z axis mobile motor 23 is arranged on the bottom of cavity, in Z axis
Screw rod is connected with mobile motor 23, guide rod is also equipped with the bottom wall of cavity, Z axis movement support is installed on guide rod,
Molding seat 12 is provided with Z axis movement support, because Z axis movement support engages with screw flight, so working as Z axis mobile motor
During 23 work, screw rod rotation will be driven, then molding seat 12 is moved in the Z-axis direction under the driving of Z axis mobile motor 23
It is dynamic.
Y-axis mobile motor 22 is arranged in the side wall of cavity, and guide rod is fixedly installed in side wall, is provided with guide rod
Y-axis moves support, and Y-axis mobile motor 22 moves support with Y-axis by a belt (not shown) and is connected, when Y-axis mobile motor 22
During rotation, support will be moved by belt drive Y-axis and be slided along guide rod, i.e. drive of the Y-axis movement support in Y-axis mobile motor 22
Moved in the Y-axis direction under dynamic.
X-axis mobile motor 21 and two guide rods are installed on Y-axis movement support, two guide rods are separately positioned on X-axis shifting
The both sides of dynamic motor 21, are provided with printhead 13 on two guide rods, the upper end of printhead are provided with feed end, the feed end
For receiving thread moulding material, the lower end of printhead 13 is provided with discharging opening, the discharging opening is used in molding seat 12
Extrusion molding material.X-axis mobile motor 21 is connected by belt with printhead 13, when X-axis mobile motor 21 rotates, will be passed through
Belt drive printhead 13 slides along guide rod, i.e., printhead 13 moves in the X-axis direction under the driving of X-axis mobile motor 21
It is dynamic.
Consumptive material supply motor, driving wheel and driven pulley are installed on printhead 13, driving wheel drives with consumptive material supply
Dynamic motor connection, driving wheel and driven pulley are arranged on the both sides of thread moulding material 15, driving wheel and driven pulley and forming material
Material 15 is in close contact.When consumptive material supply motor rotates, driving wheel will be taken to and rotated counterclockwise, and pass through driving wheel
Rotation drive moulding material 15 toward discharge end move.Heating chamber is provided between driving wheel and discharge end, due to it is described into
Section bar material includes metal material and binding agent, after the moulding material 15 entered from feed end is heated melting by heating chamber so that viscous
Knot agent is in molten condition and mixes metal material, then sprays and be placed on molding seat from discharge end.Preferably, above-mentioned X
Axle mobile motor 21, Y-axis mobile motor 22, Z axis mobile motor 23 and consumptive material supply motor are stepper motor.
Reference picture 2, metal three-dimensional printer 1 also include the cleaning device 14 being fixed in casing, and cleaning device 14 is in scrape
Tabular is set, and cleaning device 14 is arranged in a vertical direction, and the upper end of cleaning device 14 and printhead 13 are arranged on same water
In plane, in order to not influence normal print, cleaning device 4 can not be arranged on the upper area of molding seat 12, otherwise can disturb and beat
The walking of print first 13, therefore cleaning device 4 is arranged on the position of the periphery of molding seat 12.
The Method of printing first embodiment of metal three-dimensional printer：
Printhead 13 first extrudes a formable layer material on molding seat 12, and subsequent molding seat 12 moves down pre-determined distance, so
Printhead 13 is moved at cleaning device 14 afterwards, and is abutted with cleaning device 14, the subsequent movement of printhead 13 and and cleaning device
Separation, then continue executing with next layer of imaging.Occur to relatively move and realize with cleaning device 14 by the movement of printhead 13
The wiping of melt molding material.
Metal three-dimensional printer second embodiment：
Based on the principle of metal three-dimensional printer first embodiment, cleaning device can also be arranged in horizontal direction, while may be used also
To carry out excellent selection to the material of cleaning device, specifically, cleaning device can be by resistant to elevated temperatures silica gel material or resistant to elevated temperatures
Sponge material is made.
Metal three-dimensional printer 3rd embodiment：
Based on the principle of metal three-dimensional printer first embodiment, the present embodiment can carry out cleaning device active cleaning, tool
Body, set in casing and move horizontally motor, guide rod and belt, by the rotation driving, the belt transmission that move horizontally motor
In the presence of being guided with guide rod so that cleaning device can move in X direction or Y-direction movement, and the initial bit of cleaning device
On the position for putting the periphery for being arranged on molding seat.
X-axis mobile motor, Y-axis mobile motor part, Z axis mobile motor in above-described embodiment and move horizontally motor composition
The mobile motor component of the present invention.Print quality is improved simultaneously, printhead, molding seat, mobile motor component, silk can be supplied
It is arranged to motor and cleaning device in closed casing, then reduces the thermal loss in heating process.
The Method of printing second embodiment of metal three-dimensional printer：
The principle of 3rd embodiment based on metal three-dimensional printer, Method of printing include, and printhead squeezes on molding seat first
Go out the moulding material of first layer, subsequent molding seat moves down pre-determined distance, then cleaning device be moved at printhead and with
Printhead abuts, and subsequent cleaning device separates with printhead, occurs to relatively move with printhead by cleaning device movement and real
The wiping of existing melt molding material, because molding seat moves down pre-determined distance, therefore deposited between printhead and unfinished model
In certain interval, therefore the present embodiment is more excellent using the cleaning device of horizontal-extending arrangement.
Therefore the principle of picture is extruded into using printhead, moulding material includes metal material and binding agent, utilizes
FDM molding mode carries out 3 D-printing, and the high cost of its shaping efficiency is low, and the forming material with metal material of molten condition
Material, due to its metal material, and from printhead ejection after, because ambient temperature is relatively low, molten silk to the cold by
The effect deformation retraction of internal stress, the molten silk of nozzle of printhead are liable to stick to around spout, can also have clout from nozzle
Situation is flowed out in position, using cleaning device, printhead is cleaned after one layer of printing is completed, concrete mode can be used and beaten
Head actively mobile cleaning is printed, or using cleaning device actively mobile cleaning, cleaning device is wiped or clean unnecessary melting
Moulding material, then next layer of printing is carried out, then improve image quality.
The manufacture method embodiment of three-dimensionally shaped silk and three-dimensionally shaped silk embodiment：
Moulding material in above-described embodiment makes the three-dimensionally shaped silk that can be formed in the present embodiment by thread stretching, with
Lower embodiment specifically tells about the three-dimensionally shaped silk of this case is how to be made and composition proportion.
Three-dimensionally shaped silk provided by the invention include metal material, binding agent, dispersant, pliability reinforcing agent and
Stabilizer, wherein, the percentage that metal material accounts for the gross weight of three-dimensionally shaped silk is 80% to 90%；Binding agent account for it is three-dimensional into
The total weight percent of type silk is 1% to 10%；The total weight percent that dispersant accounts for three-dimensionally shaped silk be 0.1% to
5%；The total weight percent that pliability reinforcing agent accounts for three-dimensionally shaped silk is 0.1% to 5%；Stabilizer accounts for three-dimensionally shaped silk
Total weight percent be 0.1% to 1%.
Preferably, metal material be Fe/Ni metal materials (iron-nickel alloy), Wc/Co/Cu metal materials (tungsten carbide/cobalt/
Copper alloy), YBa2Cu3O7Metal material (yttrium barium copper oxide), SiC metal materials (carborundum), Si3N4Metal material (nitridation
Silicon), Si/Al metal materials (silico-aluminum), Al2O3/ Tic metal materials (aluminum oxide/titanium carbide composite), ferrous metal material
Material, cobalt metal material, Molybdenum metal materials industry, chromium metal material, niobium metal material, nickel metal material, manganese Metal material, tungsten metal material
Material, copper metal material, aluminum metallic material.
Preferably, binding agent is paraffin based binder, beeswax, stearic acid, Brazil wax, ethylene ethyl acrylate, benzene
Ethylene, propylene nitrile (SAN) resin, acrylonitrile-butadiene-styrene copolymer (ABS) resin, polybutylene terephthalate (PBT)
(PBT), polyethyleneglycol diacrylate, DPG first mystery acetate, 2-Pyrrolidone, polybutylene terephthalate (PBT),
Ethyl cellulose, acetate fiber, hydroxypropyl cellulose, collodion cotton, Ethylene/Butylene cellulose, polyvinyl butyral,
Polyethylene terephthalate, polystyrene, nylon.
Preferably, dispersant is at least one of following material：Polyamide (PA), polyformaldehyde (POM), polypropylene
(PP), polyethylene (PE), ethylene-vinyl acetate copolymer (EVA), polyacrylate (PEA).Stabilizer is steady for Zinc-oxide-based heat
Determine agent.
Preferably, pliability reinforcing agent is the mixture of o-phthalic acid dibutyl ester and dibutyl phthalate (DBP), adjacent benzene
The percentage by weight of dioctyl phthalate dibutyl ester and dibutyl phthalate (DBP) is 0.1：1 to 10：1.
Preferably, the percentage by weight that metal material occupies is 85% to 90%；The percentage by weight that binding agent occupies is
4% to 9%；The percentage by weight that dispersant occupies is 0.5% to 3%；The percentage by weight that pliability reinforcing agent occupies is
0.5% to 3%；The percentage by weight that stabilizer occupies is 0.5% to 0.8%.
First embodiment：
The manufacture method of the three-dimensionally shaped silk of the present embodiment includes following step.
As shown in figure 3, first, performing preparation process S1,80 parts of iron-nickel alloy (Fe/Ni) metal materials, 10 parts of stones are obtained
Wax-based binder, 0.5 part of polyamides amine dispersant, 0.5 part of pliability reinforcing agent and 0.5 part of oxidation zinc heat stabilizer.Wherein, it is flexible
Property reinforcing agent be o-phthalic acid dibutyl ester and dibutyl phthalate (DBP) mixture, and o-phthalic acid dibutyl ester and adjacent benzene
The percentage by weight of dioctyl phthalate dibutylester is 1：1.
Then, extrusion step S2 is performed, above-mentioned metal material, binding agent, dispersant, pliability reinforcing agent and stabilizer
By screw extruder, and extruded by molding extruder head at 100 DEG C to 250 DEG C and obtain extruded material.Such as Fig. 4 institutes
Show, each component raw material is added in screw extruder 31 through charge door 30, and the prolonged agitation each component raw material of screw rod 32 is to reach mixed
Uniform purpose is closed, then obtains extruded material 34 by the extrusion of molding extruder head 33.
Then, drawing step S3 is performed, extruded material obtains filamentary material using wire drawing machine wire drawing.As shown in figure 5, it is silk
Shape material 35 can be form of straight lines, and in outer masterpiece with occuring bending and deformation, meanwhile, this thread material after flexural deformation
Material 35 will not be broken.In a preferred embodiment, cooling step, the handle in cooling step are also included after drawing step
Filamentary material is cooled to room temperature.A diameter of 1.75 millimeters ± 0.05 millimeter of filamentary material after wire drawing.
Finally, curled hair step S4 is performed, therefore can be filamentary material because this filamentary material 35 can be with flexural deformation
35 are crimped onto on silk disk.
The three-dimensional printer of the present embodiment includes print platform, printhead and three-dimensionally shaped silk, and printhead can be relative to
Print platform is moved on three-dimensional, and three-dimensionally shaped silk is wrapped on the silk disk of FDM three-dimensional printers.The present embodiment
The specific structural features and operation principle of three-dimensional printer refer to background section.The three-dimensional printer of the present embodiment into
Type method includes preliminary forming step and sintering step, and three-dimensionally shaped silk uses the three-dimensionally shaped silk of the present embodiment.
In preliminary forming step, printhead is successively molded on print platform after three-dimensionally shaped silk is melted and formed just
Step solidification object, and melting temperature of the three-dimensionally shaped silk in printhead is 180 DEG C to 350 DEG C.
In sintering step, primary solidification object obtained above place under vacuum conditions, 1200 DEG C of hot environments
Lower sintering curing, is finally completed the shaping of three-dimensional body, and the density value of the object after shaping is 7.70.The specific work of sintering step
Skill can be found in the process of existing metal powder sintered technique.
Second embodiment：
The manufacture method of the three-dimensionally shaped silk of the present embodiment includes following step.
First, preparation process is performed：Obtain 85 parts of iron-nickel alloy (Fe/Ni) metal materials, 10 parts of beeswax binding agents, 0.3
Part polyformaldehyde dispersant, 0.7 part of pliability reinforcing agent and 0.2 part of oxidation zinc heat stabilizer.Wherein, pliability reinforcing agent is adjacent benzene
The mixture of dioctyl phthalate dibutyl ester and dibutyl phthalate (DBP), and o-phthalic acid dibutyl ester and dibutyl phthalate (DBP)
Percentage by weight is 0.3：1.
Then, extrusion step is performed, above-mentioned metal material, binding agent, dispersant, pliability reinforcing agent and stabilizer are led to
Screw extruder is crossed, and is extruded by molding extruder head at 160 DEG C to 190 DEG C and obtains extruded material.
Then, drawing step is performed, extruded material obtains filamentary material using wire drawing machine wire drawing, in preferred embodiment
In.Also include cooling step after drawing step, filamentary material is cooled to room temperature in cooling step.
Finally, curled hair step is performed, filamentary material is crimped onto on silk disk.
The three-dimensional printer of the present embodiment includes print platform, printhead and three-dimensionally shaped silk, and printhead can be relative to
Print platform is moved on three-dimensional, and three-dimensionally shaped silk is wrapped on the silk disk of FDM three-dimensional printers.The present embodiment
The specific structural features and operation principle of three-dimensional printer refer to background section.The three-dimensional printer of the present embodiment into
Type method includes preliminary forming step and sintering step, and three-dimensionally shaped silk uses the three-dimensionally shaped silk of the present embodiment.
In preliminary forming step, printhead is successively molded on print platform after three-dimensionally shaped silk is melted and formed just
Step solidification object, and melting temperature of the three-dimensionally shaped silk in printhead is 200 DEG C to 300 DEG C.
In sintering step, primary solidification object obtained above place under vacuum conditions, 1200 DEG C of hot environments
Lower sintering curing, is finally completed the shaping of three-dimensional body, and the density value of the object after shaping is 7.74.The specific work of sintering step
Skill can be found in the process of existing metal powder sintered technique.
3rd embodiment：
In preparation process is performed, obtain 90 parts of iron-nickel alloy (Fe/Ni) metal powder materials, 10 parts of beeswax binding agents, 0.4 part
Polyformaldehyde dispersant, 0.6 part of pliability reinforcing agent and 0.3 part of oxidation zinc heat stabilizer.Wherein, pliability reinforcing agent is adjacent benzene two
The mixture of formic acid dibutyl ester and dibutyl phthalate (DBP), and the weight of o-phthalic acid dibutyl ester and dibutyl phthalate (DBP)
It is 0.5 to measure percentage：1.The density value of object after shaping is 7.82.
Other steps are identical with above-mentioned second embodiment, repeat no more.
Fourth embodiment：
In preparation process is performed, obtain 80 parts of iron-nickel alloy (Fe/Ni) metal powder materials, 10 parts of ethylene ethyl acrylates and glue
Tie agent, 0.3 part of polypropylene dispersant, 0.7 part of pliability reinforcing agent and 0.2 part of oxidation zinc heat stabilizer.Wherein, pliability strengthens
Agent is the mixture of o-phthalic acid dibutyl ester and dibutyl phthalate (DBP), and o-phthalic acid dibutyl ester and phthalic acid
The percentage by weight of dibutylester is 0.3：1.The density value of object after shaping is 7.75.
5th embodiment：
In preparation process is performed：Obtain 85 parts of iron-nickel alloy (Fe/Ni) metal materials, 10 parts of stearic acid binders, 0.3 part it is poly-
Formaldehyde dispersant, 0.7 part of pliability reinforcing agent and 0.4 part of oxidation zinc heat stabilizer.Wherein, pliability reinforcing agent is O-phthalic
The mixture of sour dibutyl ester and dibutyl phthalate (DBP), and the weight of o-phthalic acid dibutyl ester and dibutyl phthalate (DBP)
Percentage is 0.8：1.The density value of object after shaping is 7.74.
Sixth embodiment：
In preparation process is performed：Obtain 85 parts of iron-nickel alloy (Fe/Ni) metal materials, 10 parts of stearic acid binders, 0.3 part it is poly-
Ethene dispersant, 0.7 part of pliability reinforcing agent and 0.5 part of oxidation zinc heat stabilizer.Wherein, pliability reinforcing agent is O-phthalic
The mixture of sour dibutyl ester and dibutyl phthalate (DBP), and the weight of o-phthalic acid dibutyl ester and dibutyl phthalate (DBP)
Percentage is 1.2：1.The density value of object after shaping is 7.80.
The experimental data of 7th embodiment to the 9th embodiment of three-dimensionally shaped silk is as shown in the table：
The other steps and parameter do not addressed of 7th embodiment to the 9th embodiment are identical with first embodiment, no longer superfluous
State.
The three-dimensionally shaped silk obtained to above-mentioned first embodiment to sixth embodiment carries out specimen sample, to these samples
Tested according to standard GB/T9341-2008.Sample is shaped as：Long 80.00 millimeters (mm), wide 10.00 millimeters (mm) are thick
4.11 millimeters (mm).The speed of test sample uses linear velocity：10.0 mm/mins (mm/min).The span of test sample is
66 millimeters (mm).
The test result of sample is as shown in the table：
Wherein, curve as shown in Figure 6 is also obtained in the sample of first embodiment, and curve shows stress with strain (hundred
Point ratio) variation tendency.
Three-dimensionally shaped silk provided by the invention, the bending strength of three-dimensionally shaped silk are more than 6.9MPa, it is achieved thereby that
Metal matrix three-dimensional is molded the flexural deformation of silk and will not fractureed.
In other embodiments, three-dimensionally shaped silk of the invention does not include heat stabilizer, and still can be complete
Into the goal of the invention of the present invention, that is, in the case of not comprising heat stabilizer, the bending strength of three-dimensionally shaped silk can
Reach requirement, be coiled on silk disk.
In other embodiments, the component of three-dimensionally shaped silk also includes magnetic material such as ferroso-ferric oxide, upper
In the manufacture method for stating three-dimensionally shaped silk, in preparation process and extrusion step, magnetic material powder is with other raw materials as glued
Tie agent etc. and add mixing together.The component of three-dimensionally shaped silk can also include colouring agent or dyestuff, to cause silk to have
Different colors.Pliability reinforcing agent is, for example, plasticizer, and plasticizer is, for example, phthalate (or phthalate
Class is also known as phthalate ester) compound, phthalate plasticiser includes：Phthalic acid two (2- ethyl hexyls) ester
(DEHP), di-n-octyl phthalate (DNOP or DnOP), BBP(Butyl Benzyl Phthalate (BBP), phthalic acid di-secondary are pungent
Ester (DCP), dicyclohexyl phthalate (DCHP) etc..The present invention is further to the material institute in the component of three-dimensionally shaped silk
Role or mechanism are set forth, but this mechanism of action does not play restriction effect to protection scope of the present invention.By
Density difference between metal material and binding agent farther out, therefore is hardly formed uniform mixed effect, and increases in component
Good effect is played in uniform mixing of the can to raw material after bonus point powder.The metal material powder and binding agent of the present invention
After forming silk, because the fragility of this silk is larger, easily fracture, and added in component soft when bending
After toughness reinforcing agent such as plasticizer, its pliability or bending strength are improved, and above-mentioned characterization result can illustrate.It is right
In the three-dimensionally shaped silk of the present invention, when its binding agent, plasticizer, dispersant use polymeric material, due to polymer point
The molecular weight of son is a wider scope, and large range of ripple occurs in this melting temperature that will result in three-dimensionally shaped silk
Move, such as melt temperature scope can cause three-dimensionally shaped silk in 200 DEG C to 230 DEG C, and after adding heat stabilizer
Melting temperature is limited in a less scope, such as between 200 DEG C to 205 DEG C.
Finally it should be noted that the invention is not restricted to above-mentioned embodiment, such as bending strength is more than 6.9MPa, curved
The designs of Qu Qiangdu more than 6.5MPa etc. are also within the claims of the present invention.
Claims (10)
1. a kind of metal three-dimensional printer of fused glass pellet, including
Printhead, the printhead are used for extrusion molding material;
Molding seat, the molding seat are used to carry the moulding material；
Mobile motor component, the mobile motor component include X-axis mobile motor, Y-axis mobile motor part and Z axis mobile motor,
The X-axis mobile motor is used to drive the movement of the printhead in the X-axis direction;The Y-axis mobile motor is used to drive institute
The movement of printhead in the Y-axis direction is stated, the Z axis mobile motor is used to drive the movement of the molding seat in the Z-axis direction,
Silk supplies motor, and the silk supply motor is used to convey the thread moulding material into the printhead；
It is characterized in that：
The moulding material includes metal material and binding agent；
The metal three-dimensional printer also includes cleaning device, and the cleaning device and the printhead are arranged on same level
On, the cleaning device is located on the position of the periphery of the molding seat, and the printhead can abut with the cleaning device.
2. metal three-dimensional printer according to claim 1, it is characterised in that：
The cleaning device is set in blade-like.
3. metal three-dimensional printer according to claim 2, it is characterised in that：
The cleaning device is arranged in a vertical direction.
4. metal three-dimensional printer according to claim 2, it is characterised in that：
The cleaning device is arranged in the horizontal direction.
5. metal three-dimensional printer according to claim 1, it is characterised in that：
The mobile motor component also includes moving horizontally motor, and the motor that moves horizontally is used to drive the cleaning device to exist
Moved on horizontal plane.
6. metal three-dimensional printer according to claim 1, it is characterised in that：
The metal three-dimensional printer also includes casing, and the casing surrounds closed cavity, and the casing is described for loading
Printhead, the molding seat, the mobile motor component, silk supply motor and the cleaning device.
7. the metal three-dimensional printer according to any one of claim 1 to 6, it is characterised in that：
The cleaning device is made by silica gel material.
8. the metal three-dimensional printer according to any one of claim 1 to 6, it is characterised in that：
The cleaning device is made by sponge material.
A kind of 9. Method of printing of the metal three-dimensional printer of fused glass pellet, it is characterised in that the metal 3 D-printing
Machine includes：
Printhead, the printhead are used for extrusion molding material, and the moulding material includes metal material and binding agent;
Molding seat, the molding seat are used to carry the moulding material；
Mobile motor component, the mobile motor component include X-axis mobile motor, Y-axis mobile motor part and Z axis mobile motor,
The X-axis mobile motor is used to drive the movement of the printhead in the X-axis direction;The Y-axis mobile motor is used to drive institute
The movement of printhead in the Y-axis direction is stated, the Z axis mobile motor is used to drive the movement of the molding seat in the Z-axis direction,
Silk supplies motor, and the silk supply motor is used to convey the thread moulding material into the printhead；
Cleaning device, the cleaning device and the printhead are arranged in same level, and the cleaning device is positioned at described
On the position of the periphery of molding seat,
The Method of printing includes：
The printhead extrudes the moulding material on the molding seat；
The printhead is moved to the cleaning device and abutted with the cleaning device；
The printhead separates with the cleaning device.
A kind of 10. Method of printing of the metal three-dimensional printer of fused glass pellet, it is characterised in that the metal 3 D-printing
Machine includes：
Printhead, the printhead are used for extrusion molding material, and the moulding material includes metal material and binding agent;
Molding seat, the molding seat are used to carry the moulding material；
Mobile motor component, the mobile motor component include X-axis mobile motor, Y-axis mobile motor part, Z axis mobile motor and
Motor is moved horizontally, the X-axis mobile motor is used to drive the movement of the printhead in the X-axis direction;The Y-axis movement
Motor is used to drive the movement of the printhead in the Y-axis direction, and the Z axis mobile motor is used to drive the molding seat in Z
Movement on direction of principal axis,
Silk supplies motor, and the silk supply motor is used to convey the thread moulding material into the printhead；
Cleaning device, the cleaning device and the printhead are arranged in same level, and the cleaning device is positioned at described
On the position of the periphery of molding seat, the motor that moves horizontally is used to drive the cleaning device to move in the horizontal plane,
The Method of printing includes：
The printhead extrudes the moulding material on the molding seat；
The molding seat moves down pre-determined distance；
The cleaning device is moved at printhead and abutted with the printhead；
The cleaning device separates with the printhead.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877108.8A CN107876778A (en) | 2016-09-30 | 2016-09-30 | The metal three-dimensional printer and its Method of printing of a kind of fused glass pellet |
| PCT/CN2017/103153 WO2018059348A1 (en) | 2016-09-30 | 2017-09-25 | Fused deposition modeling metal three-dimensional printer and printing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877108.8A CN107876778A (en) | 2016-09-30 | 2016-09-30 | The metal three-dimensional printer and its Method of printing of a kind of fused glass pellet |
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| CN107876778A true CN107876778A (en) | 2018-04-06 |
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| CN105922586B (en) * | 2016-05-16 | 2018-12-18 | 磐纹科技（上海）有限公司 | 3D printer and 3D printing method |
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| WO2018059348A1 (en) | 2018-04-05 |
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