CN206170637U - Three -dimensional inkjet printer and three -dimensional body - Google Patents
Three -dimensional inkjet printer and three -dimensional body Download PDFInfo
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- CN206170637U CN206170637U CN201620555203.1U CN201620555203U CN206170637U CN 206170637 U CN206170637 U CN 206170637U CN 201620555203 U CN201620555203 U CN 201620555203U CN 206170637 U CN206170637 U CN 206170637U
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- thermosetting resin
- printhead
- dimensional body
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Abstract
The utility model relates to a three -dimensional body that three -dimensional inkjet printer and this kind of three -dimensional inkjet printer formed. Three -dimensional inkjet printer includes print platform, beats the printer head device. Print platform is used for bearing the three -dimensional body, and it has fibre reinforced plastic and thermosetting resin to knit the interior splendid attire of printer head device, beats the printer head device and can remove for print platform. After printing a plurality of shaping layers of completion, can form the three -dimensional body. Above -mentioned scheme has not only strengthened the intensity of three -dimensional body, and can improve the surface smoothness of three -dimensional body.
Description
Technical field
This utility model is related to 3 D-printing field, is to be related to a kind of three-dimensional printer and three-dimensional body specifically.
Background technology
Three-dimensional printer is the equipment that a kind of utilization rapid shaping technique carries out printing three-dimensional body, and it is with mathematical model
Basis, using materials such as plastics or powdered-metals, prints layer by layer three-dimensional body.The process of 3 D-printing is by meter first
Calculation machine Aided Design（CAD）Or computer animation modeling software modeling, then by the threedimensional model for building up " subregion " into successively cut
Face, obtains machining path, so as to instruct printer successively to print further according to analysis cross section information.According to the difference of operation principle,
Its rapid shaping technique for being utilized has melted extrusion modeling, laser selective sinter molding, Stereolithography etc..
Used as the representative of three-dimensional printing technology, FDM (Fused Deposition Modeling, fused glass pellet) is
It is a kind of that the technique for piling up and being formed three-dimensional entity model is superimposed by melted material, typically using successively curing molding method, make
Resin after printing becomes layer by layer solid, so as to produce solid state image product.Wherein common moulding material includes poly-
Ethylene glycol terephthalate (PET), polylactic acid（PLA）, acrylonitrile-butadiene-styrene copolymer（ABS）Deng substantially
The moulding material by being input into wire from the printhead upper end of three-dimensional printer, then in Jing printheads high-temperature fusion again from beating
The filamentary material of about 0.1 millimeter to 0.2 millimeter of print head outlet extrusion, then this filamentary material according to program, rule
Be arranged in printing supporting plate on, it is three-dimensionally shaped so as to realize.
But the object for so printing can be present, the intensity of the three-dimensional body for for example printing and hard
Degree is inadequate, and the rough surface of the three-dimensional body for printing and it is not attractive in appearance enough.
Utility model content
Main purpose of the present utility model is to provide a kind of three-dimensional printer, and three-dimensional printer includes print platform, prints
Head device and the unit that is heating and curing.Print platform is used to carry three-dimensional body, and fibre reinforced plastics are loaded with head device,
Head device can be moved relative to print platform.Head device is also loaded with thermosetting resin, and the unit that is heating and curing is used for
Make the thermosetting resin solidification carried on print platform.
From such scheme, in the forming process of three-dimensional printer, fibre reinforced plastics are mainly used in three-dimensional body
Interior formable layer, and thermosetting resin then be used for three-dimensional body outer formable layer.On the one hand such way can strengthen three-dimensional
The intensity of object；On the other hand, because short fiber material or fibrous material can form internal voids in fiber-reinforced resin, heat
Thermosetting resin can be penetrated into gradually inside space, can thus cause the surface of three-dimensional body very smooth, while also can strengthen
The intensity of three-dimensional body.
Printhead can carry out the movement of three-dimensional relative to print platform, occur in that in prior art polytype
Print platform and printhead are mutually shifted form.For example, in Application No. CN201510054483.8 and
Horizontal direction two dimension (X, Y-direction are disclosed in the Chinese invention patent application file of CN201410609259.6）That what is moved beats
Print head and vertical direction（Z-direction）The print platform of motion.And in other embodiments, it is also possible to keep print platform fixing
Position, printhead Arbitrary 3 D direction motion in the range of certain space, such as in Application No. CN201310246765.9
Chinese invention patent application, or disclose in the Chinese utility model patent application of Application No. CN201420137806.0
A kind of print platform is in a fixed position all the time, and printhead can relative to print platform three-dimensional direction moving scheme.
One preferred scheme is that fibre reinforced plastics are beaten by made by after short fiber material and thermoplastic mixing
Printed material material；Short fiber material is at least one in following material：Carbon fiber, glass fibre, boron fibre, carbon fibre；Thermoplastic
Property material is at least one in following material：Polylactic acid, polyethylene terephthalate, acrylonitrile-butadiene-styrene (ABS)
Copolymer.
From such scheme, thermoplastic is referred to heating and softening, the plastics of hardening by cooling characteristic.Plus temperature time variance
It is soft so that flowing, cooling is hardened, this process is reversible, can be repeated.In the prior art, it is adapted for use in FDM
The species of thermoplastic be very many, polylactic acid（PLA）And acrylonitrile-butadiene-styrene copolymer（ABS）It is then
The bi-material being most widely used.Thermoplastic can be specifically silk shape or dusty material.Work as thermoplastic
When being filamentary material, it can be using beating disclosed in Application No. CN201410073577.5 or CN201510054483.8
Print head, this printhead is also referred to as in the art gear melt extruded formula printhead.When thermoplastic is powder material
During material, the structure of printhead can adopt the structure disclosed in Application No. CN201510260858.6.The knot of obvious printhead
Structure can also adopt the other types of structure of prior art, also, thermoplastic is specifically also an option that other states
Material, such as can also be lamellar, it is only necessary to which the structure of printhead is smoothly deposited on after heating thermoplastic material being melted
On print platform.
Fibre reinforced plastics are a kind of composites of the prior art, are widely used in multiple fields.Such as glass
Glass fibre reinforced plastics are exactly one of which, and the kind of fiberglass reinforced plastics is also a lot, and performance is also different, and purposes is very wide
General, it is by synthetic resin and glass fibre Jing combination process, a kind of material of the functional type being made.This utility model institute
The fibre reinforced plastics of finger are just referred to be made again after the thermoplastic printed suitable for existing FDM is mixed with fibrous material
It is made three-dimensionally shaped material.On the one hand such scheme can strengthen the intensity of thermoplastic, on the other hand it is also possible that
3-D. formed body is internally formed gap or space, and the infiltration for facilitating thermosetting resin fills.Fiber is preferably chopped fiber material
Material, although the preferred version of chopped fiber is carbon fiber, glass fibre, boron fibre, carbon fibre, but it is clear that it can also be existing
There is other types of fiber in technology, as long as meeting two conditions：First intensity that can exactly strengthen thermoplastic,
Second exactly can be internally formed space in 3-D. formed body.
One preferred scheme is that the shared part by weight in fibre reinforced plastics of short fiber material is less than 10%.
From such scheme, short fiber material accounts for the ratio of fibre reinforced plastics gross weight and is preferably controlled in 10% weight
Below ratio, and preferably 3% part by weight, or 2.5% to 3.5% part by weight.One preferred scheme is, liquid
The preparation method of thermosetting resin includes below step：First, novolac epoxy resin, firming agent and methylnadic anhydride
It is mixed to form the first mixture；Then, add phenolic resin and form the second mixture；Finally, heating stepses are performed and is adjusted
Viscosity.
From such scheme, thermosetting resin (thermosetting resin) to be referred to and produce chemistry after resin heating
Change, gradually hardened forming, then be heated and also do not soften, a kind of resin that can not be dissolved.Although being presented above a kind of preferred
Thermosetting resin preparation method.But, thermosetting resin specifically can also be the existing thermosetting resin of other species.
Further preferred scheme is, the novolac epoxy resin of addition and the gross weight of firming agent and methylnadic anhydride
Part by weight be 1:1；The phenolic resin of addition accounts for the 0.1% of the weight of the first intermediate blend；The heating-up temperature of heating stepses
For 150 DEG C.
One preferred scheme is that print platform is arranged in heating chamber and/or confined chamber and/or negative pressure room.
One preferred scheme is that three-dimensional body has at least one shape layer, and shape layer has internal layer and outer layer, molding
Layer carries out according to the following steps molding：First printhead is fibre reinforced plastics fusion sediment in internal layer；Second printhead handle
Liquid thermosetting resin is deposited on outer layer；The unit that is heating and curing makes the liquid thermosetting resin in outer layer heat solidify afterwards.
One preferred scheme is that the temperature control of heating chamber is between 140 DEG C to 160 DEG C.
One preferred scheme is that negative pressure chamber is vacuum chamber.
One preferred scheme is that thermosetting resin is liquid thermosetting resin.
One preferred scheme is that head device has in the first printhead and the second printhead, the first printhead contains
Dress fibre reinforced plastics, contain thermosetting resin in the second printhead.
The forming method of three-dimensional body, three-dimensional body has at least one shape layer, and shape layer has outer layer and internal layer；Three
The forming method of dimension object includes below step：First, fibre reinforced plastics are filled in internal layer；Then, liquid thermoset
Resin is filled in outer layer.
Three-dimensional body, prints through three-dimensional printer and obtains, and three-dimensional body includes multiple shape layers；Wherein, at least one
Shape layer includes internal layer and outer layer, and internal layer is filled to fibre reinforced plastics, and outer layer is filled to thermosetting resin.
Further preferred scheme is that have space, thermosetting resin as the fibre reinforced plastics of internal layer packing material
A part be filled in space.
The forming method of three-dimensional printer, three-dimensional printer includes print platform, head device, and print platform is used to hold
Carry three-dimensional body；Head device is loaded with fibre reinforced plastics, and head device can be moved relative to print platform, printhead
Device is also loaded with liquid thermosetting resin；Be heating and curing unit, for making the thermosetting resin solidification carried on print platform；
Three-dimensional body has at least one shape layer, and shape layer has outer layer and internal layer；The forming method of three-dimensional printer includes following
The step of：First, the fibre reinforced plastics in head device are filled in internal layer；Then, the liquid in head device
Thermosetting resin is filled in outer layer；Then, the unit that is heating and curing makes the thermosetting resin in outer layer heat solidify afterwards.
One preferred scheme is that thermosetting resin is liquid thermosetting resin；Head device has the first printhead
Contain in fibre reinforced plastics, the second printhead thermosetting resin with containing in the second printhead, the first printhead.
One preferred scheme is that the preparation method of thermosetting resin includes below step：First, epoxy novolac tree
Fat, firming agent and methylnadic anhydride are mixed to form the first mixture；Then, add phenolic resin and form the second mixing
Thing；Finally, heating stepses are performed and viscosity is adjusted.
Further preferred scheme is, the novolac epoxy resin of addition and the gross weight of firming agent and methyl Na Dike
The part by weight of anhydride is 1:1；The phenolic resin of addition accounts for the 0.1% of the weight of the first intermediate blend；The heating of heating stepses
Temperature is 150 DEG C.
Description of the drawings
Fig. 1 be this utility model three-dimensional printer embodiment the first printhead and the second printhead on print platform into
The schematic diagram of type process.
Fig. 2 is the schematic diagram of a shape layer of the three-dimensional body of this utility model three-dimensional printer embodiment.
Fig. 3 is the schematic diagram of another shape layer of the three-dimensional body of this utility model three-dimensional printer embodiment.
Fig. 4 is the generalized section of the three-dimensional body of this utility model three-dimensional printer embodiment.
Fig. 5 is that the 3 D-printing object of this utility model three-dimensional printer embodiment is placed on closed interior and carries out post processing
Schematic diagram.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Specific embodiment
Three-dimensional printer embodiment：
As shown in figure 1, the three-dimensional printer of the present embodiment includes print platform 50, the first printhead 20, the second printhead
30 and it is heating and curing unit.Print platform 50 is used to carry three-dimensional body 10, and the first printhead 20 is loaded with fibre reinforced plastics
21, fibre reinforced plastics 21 are used to form the internal material of three-dimensional body 10, or referred to as inner layer material.First printhead 20 can phase
For print platform 50 is moved.Second printhead 30 is loaded with thermosetting resin 31, and thermosetting resin 31 is used to form three-dimensional article
The exterior material of body 10, or referred to as cladding material.Second printhead 30 can be moved relative to print platform 50.Be heating and curing unit
For making the thermosetting resin solidification carried on print platform.
Preferably, fibre reinforced plastics are the printed materials by made by after short fiber material and thermoplastic mixing, short
The shared part by weight in fibre reinforced plastics of fibrous material is less than 10%, and those skilled in the art can be according to specific need
Both ratios are adjusted, but general short fiber material account for gross weight ratio should control 10% part by weight with
Under, and preferably 3% part by weight, for example, 2.5% to 3.5% part by weight.Specifically, short fiber material is following thing
At least one in matter：Carbon fiber, glass fibre, boron fibre, carbon fibre.Thermoplastic is at least in following material
Kind：Polylactic acid, polyethylene terephthalate, acrylonitrile-butadiene-styrene copolymer.Due to the presence of chopped fiber, when
After FRP molded, it can form many little spaces or hole in three-dimensional body.
Preferably, the preparation method of thermosetting resin includes below step：First, novolac epoxy resin, firming agent
The first mixture is mixed to form with methylnadic anhydride；Then, add phenolic resin and form the second mixture；Finally, hold
Row heating stepses simultaneously adjust viscosity.Specifically, the gross weight of the novolac epoxy resin of addition and firming agent and methyl nadic acid
The part by weight of acid anhydride is 1:1；The phenolic resin of addition accounts for the 0.1% of the weight of the first intermediate blend；The heating temperature of heating stepses
Spend for 150 DEG C.In some embodiments for deforming, the first printhead and the second printhead zoarium form a head device,
Head device formed an entirety after, its can relative to print platform globality it is mobile, such mode can subtract
The space that few part is occupied.First printhead and the second printhead of head device can also be controlled respectively, i.e., control respectively
, relative to the movement of print platform, they are not disturbed each other for first printhead and the second printhead.The shape of thermosetting resin
State is preferably liquid or liquid, and liquid here should be a more wide in range understanding, because the state of thermosetting resin is
Gradually changed according to the different of concrete viscosity, and this viscosity typically can be adjusted.Therefore, the present embodiment
The liquid of the thermosetting resin of indication can be that viscosity is little, the state that mobility is big, or viscosity is big, mobility is little shape
State.
The forming method of above-mentioned three-dimensional printer mainly includes two steps.First provide a three-dimensional body for needing to print
10, three-dimensional body 10 has multiple printing shaping layers, as shown in Fig. 2 one of shape layer has outer layer 11 and internal layer 12.This
In embodiment, outer layer 11 it can be appreciated that top layer, top layer it can be appreciated that the layer that can be observed directly with vision of user, or
The layer that person user can be perceived with hand.But in some cases, as shown in figure 3, the part on top layer is to be difficult observation
To or be difficult to be perceived with hand, outer layer positions of these depressions fall within the implication of top layer or outer layer.
The print procedure of shape layer is as follows：First, the fibre reinforced plastics 21 in the first printhead 20 are filled in internal layer
12.Then, the thermosetting resin 31 in the second printhead 30 is filled in outer layer 11.Then, the unit that is heating and curing is made in outer layer
Thermosetting resin heating solidify afterwards.After the printing for completing multiple shape layers, you can form three-dimensional body 10.By this
The three-dimensional body 10 that mode is formed, it has at least one shape layer, and this shape layer has outer layer 11 and internal layer 12, internal layer 12
It is that the fusion sediment of fibre reinforced plastics 21 is formed by the first printhead 20.Outer layer 11 is heat by the second printhead 30
The formation of deposits of thermosetting resin 31, as other shape layers of three-dimensional body 10, its forming process can also be new according to this practicality
The method of type is printed or printed using existing other methods.
As shown in figure 4, the fiber of the internal layer packing material of the three-dimensional body 10 formed by three-dimensional printer above is increased
Strong plastics 21 have a space 22, and the part of thermosetting resin 31 can be filled in space 22, space 22 also is understood as hole.
Preferably, as shown in figure 5, print platform 50 is arranged in heating chamber 51, heating chamber 51 can also for confined chamber or
Negative pressure chamber, that is, its be provided simultaneously with heating and thermal insulation, it is closed and provide negative pressure function.Negative pressure refers to that the air pressure of interior is less than room
Outer air pressure, is generally less than 0.7 or 0.5 times of normal atmosphere (An), or for vacuum state.When print platform 50 sets
After putting in confined chamber 51, three-dimensional body may be in the environment of confined chamber 51.In the whole printing process of three-dimensional body
In, confined chamber can carried out under negative pressure of vacuum and the closed environment of insulation.Or, can complete to print under thermal environment,
Then it again is at the state of negative pressure of vacuum and insulation.In some embodiments for deforming, in the forming method of three-dimensional printer,
First printhead and the second printhead one head device of fit formation, head device is formed after an entirety, and it can
With relative to print platform globality it is mobile.Head device can respectively control fibre reinforced plastics and thermosetting resin
Deposit to corresponding position.Fibre reinforced plastics usually plus after heat fusing are deposited on print platform, and thermosetting resin can be with
It is deposited on print platform using modes such as injection, spraying, coatings.
However, three-dimensional body is after formation, continue energy the step of post processing is carried out in the case of negative pressure of vacuum and insulation
Enough strengthen the intensity and surface flatness of three-dimensional body.Wherein, the temperature of heating and thermal insulation may be provided at 150 DEG C.Through negative pressure and
Insulation effect, makes the liquid thermosetting resin material on the inner layer outer surface of three-dimensional body fully penetrate into the hole of thermoplastic
Solidify in gap and after the heating.So that the surface smoothness of three-dimensional body is higher, the intensity of three-dimensional body is higher.
Finally it should be noted that this utility model is not limited to above-mentioned embodiment, such as thermosetting resin is added
Work technique is adjusted, and chooses the design such as other thermoplastics suitable for 3 D-printing also in right of the present utility model
Within the scope of claimed.
Claims (7)
1. three-dimensional printer, including：
Print platform, for carrying three-dimensional body；
Characterized in that, the three-dimensional printer also includes：
Head device, is loaded with the fibre reinforced plastics for printing the three-dimensional body internal layer, and the head device can
Relative to print platform movement, the thermosetting for printing the three-dimensional body outer layer is also loaded with the head device
Property resin；
Be heating and curing unit, for making the thermosetting resin solidification carried on the print platform；
The head device has the splendid attire fiber reinforcement in the first printhead and the second printhead, first printhead
The thermosetting resin is contained in plastics, second printhead.
2. three-dimensional printer according to claim 1, it is characterised in that：
The print platform is arranged in heating chamber and/or confined chamber and/or negative pressure room.
3. three-dimensional printer according to claim 2, it is characterised in that：
The temperature control of the heating chamber is between 140 DEG C to 160 DEG C.
4. the three-dimensional printer according to Claims 2 or 3, it is characterised in that：
The negative pressure chamber is vacuum chamber.
5. three-dimensional printer according to claim 1, it is characterised in that：
The thermosetting resin is liquid thermosetting resin.
6. three-dimensional body, prints through three-dimensional printer and obtains, it is characterised in that：
The three-dimensional body includes shape layer, and the shape layer has outer layer and internal layer；
Wherein, the internal layer is filled to fibre reinforced plastics, and the outer layer is filled to thermosetting resin.
7. three-dimensional body according to claim 6, it is characterised in that：
There is space as the fibre reinforced plastics of the internal layer packing material, one of the thermosetting resin of the outer layer filling
Divide and be filled in the space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620555203.1U CN206170637U (en) | 2016-06-08 | 2016-06-08 | Three -dimensional inkjet printer and three -dimensional body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620555203.1U CN206170637U (en) | 2016-06-08 | 2016-06-08 | Three -dimensional inkjet printer and three -dimensional body |
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| Publication Number | Publication Date |
|---|---|
| CN206170637U true CN206170637U (en) | 2017-05-17 |
Family
ID=58673032
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620555203.1U Active CN206170637U (en) | 2016-06-08 | 2016-06-08 | Three -dimensional inkjet printer and three -dimensional body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130986A (en) * | 2017-06-15 | 2019-01-04 | 通用汽车环球科技运作有限责任公司 | The Seat support component formed by increasing material manufacturing |
| WO2019112453A1 (en) * | 2017-12-05 | 2019-06-13 | Bibus Menos Sp. Z O. O. | Method for producing three-dimensional objects |
| CN111055494A (en) * | 2019-12-04 | 2020-04-24 | 北京理工大学 | Continuous fibers reinforcing combined material 3D printer |
| CN111761811A (en) * | 2020-06-30 | 2020-10-13 | 北京机科国创轻量化科学研究院有限公司 | Additive manufacturing method of fiber-reinforced thermoplastic resin-based composite material |
-
2016
- 2016-06-08 CN CN201620555203.1U patent/CN206170637U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130986A (en) * | 2017-06-15 | 2019-01-04 | 通用汽车环球科技运作有限责任公司 | The Seat support component formed by increasing material manufacturing |
| WO2019112453A1 (en) * | 2017-12-05 | 2019-06-13 | Bibus Menos Sp. Z O. O. | Method for producing three-dimensional objects |
| CN111055494A (en) * | 2019-12-04 | 2020-04-24 | 北京理工大学 | Continuous fibers reinforcing combined material 3D printer |
| CN111761811A (en) * | 2020-06-30 | 2020-10-13 | 北京机科国创轻量化科学研究院有限公司 | Additive manufacturing method of fiber-reinforced thermoplastic resin-based composite material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220908 Address after: Room 103-036, 1st Floor, Building 1, No. 18, Futian Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 (centralized office area) Patentee after: Zhuhai Tianwei Additives Co.,Ltd. Address before: 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park, ping North Road No. 32 Patentee before: PRINT RITE UNICORN IMAGE PRODUCTS Co.,Ltd. OF ZHUHAI |
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| TR01 | Transfer of patent right |